加工...
Chromite Gemstone: Properties, Meanings, Value & More
铬铁矿宝石:属性、含义、价值等
该文本是机器翻译的。 显示原件?

加工...

chromite gemstoneIt’s easy to confuse chromite with any old rock, but this mineral is far from ordinary! 

Chromite is a metallic, black to gray oxide mineral and a variety of spinel. It’s even referred to as “chrome spinel,” but we’ll stick to “chromite” for the sake of this guide. 

Is chromite a rare mineral? Yes and no. Chromite itself is widely abundant, but you won’t usually find it in crystallized form. This makes chromite gemstones a bit harder to come by.

Metaphysically, chromite is considered a powerful stone of protection used for fortifying your physical, emotional, and spiritual bodies. 

Curious to learn more about this understated stone? 

Join us as we break down all that there is to know about what chromite is, how it forms, its meanings, uses, and more in our Chromite Gemstone Guide!

chromite gemstoneImage credit: Rob Lavinsky, iRocks.com – CC-BY-SA-3.0

About Chromite Stone

Chromite is the only economic ore of chromium, an important element for many industrial uses. In fact, that’s how chromite got its name! It’s also derived from Greek chroma, meaning “color.”

So what kind of industrial uses does chromite boast? It can be used:

  • As a ballistic modifier in defense weapons and space vehicles.

  • To harden and manufacture steel.

  • In plating to produce hard, corrosion-free surfaces.

  • For tanning leather.

  • As mordants in textiles.

  • For anodizing aluminum in aircraft and other industries.

  • To form bricks and shapes in the refractory industry.

  • As pigment in paint.

But that’s not all it’s known for. If you’re a fan of the cult-favorite “Final Fantasy” video game series, chromite may be ringing some bells in your head. That’s because the semi-precious gemstone appears in “Final Fantasy XIV.” Players get a chance to mine for chromite ore as they level up in the game. 

Outside of Japanese sci-fi fantasy, how does one identify chromite in the real world? 

Chromite Specifications & Characteristics

Chromite is a member of the spinel group, along with minerals like franklinite, gahnite, magnetite, and spinel. Crystals are usually small, forming as granules, nodules, or in a mass.

Although chromite isn’t usually magnetic, some specimens can show slight magnetism — making it easy to confuse for magnetite. Knowing what to observe in terms of hardness, streak, and density are necessary to tell hand specimens apart.

Here’s an overview of chromite’s mineral data:

  • Chromite formula: FeCr2O4

  • Mineral family: Spinel group 

  • Composition: Chromium, iron, oxygen

  • Mohs hardness: 5.5 to 6

  • Color: Dark gray to black, reddish brown, rarely brownish black 

  • Crystal structure: Isometric

  • Luster: Metallic to submetallic

  • Transparency: Translucent to opaque

  • Refractive index: 2.08 to 2.16

  • Density: 4.0 to 5.1

  • Cleavage: None

  • Fracture: Conchoidal

  • Tenacity: Brittle

  • Streak: Dark brown

  • Luminescence: None

  • Pleochroism: None

  • Treatments: Naturally untreated but can be heat-treated

How many different kinds of chromite are there, anyway? 

microchromite1.jpgImage credit: Northwestern University

Types of Chromite

Chromite has a few varieties differing primarily in composition: 

Aluminum Chromite

This is an aluminum variety of chromite in the chromite-hercynite series.

Alumoberezovite

Alumoberezovite is a magnesian aluminian chromite.

Berezovskite

Berezovskite is a magnesian variety of chromite found mainly in Germany.

Ferrian Chromite

This is a ferrian variety of chromite within the chromite-magnetite series.

Leopardenerz

Leopardenerz is a variety that displays leopard-like chromite patches in a brighter matrix.

Titaniferous Chromite

This is a titanium-bearing chromite variety found mainly in France.

Chromite varieties? Check! Next up, history! 

Leopard_chromite.JPGImage credit: Geologicharka | Creative Commons Attribution-Share Alike 3.0 Unported license

Chromite History

Chromite was officially discovered in 1845 in France by Austrian mineralogist Wilhelm Karl Ritter von Haidinger. He named the mineral for its chromium content. 

Although the mineral is cited as having been discovered in 1845, it was actually described a few decades prior. In 1798, P. Meder named it chromian-säure eisen (German for “chromic acid iron”) and wrote about finding the mineral along river banks in Northern Russia. 

Over time, chromite has been known by a few different names, such as:

  • Chromian-säure eisen (early 1798)

  • Eisenchrom (late 1798)

  • Fer chromaté aluminé (1800)

  • Chromeisenstein (1832)

  • Siderochrome (1841)

  • Chromoferrite (1843)

Finally, in 1844, the mineral garnered its final name change. Since then, we’ve recognized it as “chromite.” 

With regards to healing, what is special about chromite?

ChromitePictured above: Crystals picked out of a chromite concentrate from the Rustenburg mine, Western Bushveld, South Africa | Image credit: Sandatlas

Chromite Healing Properties

Most gems have specific characteristics allowing crystal healers to use them as healing stones to support overall wellness.

Like other black and brown gemstones, the chromite crystal’s meaning is one of protection, grounding, and balance. Its vibrations are said to fortify your physical, emotional, and spiritual bodies on a deeper level.

First, let’s see how chromite can support your physical wellbeing.

Physical Healing

Chromite supports your physical wellness on a cellular level by purportedly helping your body absorb nutrients, mainly vitamins A and D. 

It’s also thought to treat eye disorders and alleviate lung problems.

Emotionally, what is chromite used for?

Emotional Healing

Do you tend to jump the gun? Maybe you let your impulses get the best of you sometimes. If so, chromite can foster a state of non-reaction to unpleasant or stressful situations. 

Chromite doesn’t make you apathetic, though. Instead, it brings you a deeper awareness and enhances your perceptiveness. This way, you’re better equipped to make wise decisions based on logic and strategy instead of letting your emotions take the driver’s seat. 

Chakra Healing

Chakra stones are crystals that help activate and balance your chakras or energy points along the center of your body.  

Like spinel, chromite uses its vibrations to balance your root chakra. You can find this chakra at the base of your spine. As the name implies, this chakra roots your body and soul to the earth. It’s responsible for governing your survival, instincts, and stability.

As a powerful grounding stone, chromite stabilizes your chakral root — centering you, calming you, and making you feel safer. In turn, it allows you to focus on personal growth, boosting your quality of life. 

What is the value of chromite? That depends on grading!

Chromite-783965.jpgImage credit: John Sobolewski (JSS)

Chromite Gemstone Properties

Every gem has characteristics that help experts determine what they’re worth. The chromite properties experts assess to determine its value are color, cut, and size. 

Color

Most chromite is black to gray, but some specimens can also appear reddish-brown to brown. This is a result of their iron-oxide composition.

Inclusions within the mineral, like serpentine, calcite, or olivine, can alter chromite’s color and luster. 

With chromite, the more metallic a specimen is, the more sought-after and valuable it becomes.

Cut

Chromite is mainly sold rough (or uncut), which is also its most affordable form. 

The mineral’s metallic, black appearance makes for some interesting gemstones. It can be faceted into popular gemstone shapes like round, oval, octagon, or trillion-cuts. 

Along with cabochons, chromite is mostly cut for collective purposes only. However, because of its abundance, cut gems tend to be quite inexpensive compared to other minerals on the market. 

Size

Chromite is widely abundant, with many deposits producing large specimens. As a result, finding large chromite specimens isn’t hard. These large pieces are also sold at very accessible prices.

Crystal-quality specimens aren’t as easy to come by, earning them higher prices (especially for larger-sized crystals). 

But before chromite makes it to grading, it first has to form, of course! 

Chromite-551552.jpgImage credit: Leon Hupperichs

Chromite Formation & Sources

It takes a little magmatic action to form chromite — usually alongside other minerals like magnetite or dolomite

Chromite is one of the first minerals to crystallize in ultramafic magmas. It typically occurs in olivine-rich igneous rocks and serpentinized rocks (formed by the transformation of igneous rocks).

Chromite is resistant to weathering; therefore, it’s often distributed in alluvial placers (gravel or sand deposits within lakes or river beds). However, in localities where temperatures are very high, the mineral is oxidized and destroyed.

Geographically, where is chromite found?

Mining Locations

There are chromite localities scattered all over the world. The largest deposit is found in South Africa. Other well-known localities include:

  • Canada

  • Cuba

  • France

  • India

  • Norway

  • Philippines

  • Russia

  • Turkey

  • United States (sparingly)

…to name a few.

Some chromites even have interstellar roots. It’s been found in meteorites, asteroids, and on the moon! Far out, right?

Ready to add some chromite to your crystal collection? Let’s see how much this curious mineral costs.

Chromite_ore.jpgImage credit: IbrZulya | Creative Commons Attribution-Share Alike 4.0 International license

Chromite Stone Price & Value

Fortunately, thanks to chromite’s abundance, stones are fairly affordable — especially in comparison to more popular gems.

Rough chromite is usually the most common form of the mineral you’ll find sold. Rough chromite price per gram ranges between $0.04 to $0.06. High-quality specimens can garner as much as $0.19 per gram.

Faceted chromite fetches higher prices, costing around $10 to $20 per carat. Some higher-end pieces can cost as much as $59 per carat. 

Chromite carvings and chromite cut en cabochon are mostly sold as curiosities with little special attraction, so prices will vary by individual seller. 

In jewelry, chromite is more often used as a master alloy than a gem. Instead, jewelry-makers use it to coat metal and keep it from rusting. Well-formed crystals are rare, making chromite jewelry hard to find. However, it does exist — you’ll just have to do some hunting!

If you’re lucky enough to find chromite jewelry for sale, prices can vary. Chromite rings generally retail for about $30 to $125. Prices increase depending on what kinds of metal and gems are incorporated within the designs. The same goes for bracelets and necklaces.

Now that you have a better idea of what chromite is worth, it’s time to master caring for your gemstones!

Chromite Care and Maintenance

With a hardness of about 6 on the Mohs scale, chromite is a fairly durable gem, but some attention to care is necessary to maintain its appearance.

Firstly, you’ll want to avoid high heat and store it in a cool, dry place. This is because high temperatures can cause chromite’s color and luster to fade. 

Opt for chromite jewelry with protective settings, and be sure to remove it before partaking in impact-prone or rigorous activities, like washing dishes or exercising. 

When cleaning your chromite, use mild soap, water, and a soft-bristled brush or non-abrasive rag. Make sure you remove all soapy residue and dry it thoroughly before storing your chromite.

Declutter Your Mind with Chromite!

Finding your center in times of uncertainty is never easy. Perhaps chromite can be your eye in the storm of it all — bringing you perseverance, serenity, and insight when you need it most. 

Even if you’re living on Easy Street, chromite’s dark, metallic appearance makes it a unique and otherworldly addition to any crystal display. 

Ready to make a home for it in your gem collection?

Buy chromite and other obscure gemstones today!

铬铁矿宝石很容易将铬铁矿与任何古老的岩石混淆,但这种矿物绝非普通!

铬铁矿是一种黑色至灰色的金属氧化物矿物和各种尖晶石。它甚至被称为“铬尖晶石”,但为了本指南,我们将坚持使用“铬铁矿”。

铬铁矿是稀有矿物吗?是和不是。铬铁矿本身储量广泛,但您通常不会发现它呈结晶形式。这使得铬铁矿宝石更难获得。

从形而上学的角度来看,铬铁矿被认为是一种强大的保护石,用于强化您的身体、情感和精神体。

想了解更多关于这种低调石头的信息吗?

加入我们,我们将在我们的铬铁矿宝石指南中详细介绍什么是铬铁矿、它是如何形成的、它的含义、用途等等!

铬铁矿宝石图片来源:Rob Lavinsky,iRocks.com – CC-BY-SA-3.0

关于铬铁矿

铬铁矿是唯一经济的铬矿石,是许多工业用途的重要元素。事实上,铬铁矿就是这样得名的!它也源自希腊语chroma ,意思是“颜色”。

那么铬铁矿有哪些工业用途呢?它可以用于:

  • 作为防御武器和太空飞行器的弹道改进剂。

  • 硬化和制造钢。

  • 在电镀中产生坚硬、无腐蚀的表面。

  • 用于鞣革。

  • 作为纺织品的媒染剂。

  • 用于飞机和其他行业的阳极氧化铝。

  • 在耐火工业中形成砖和形状。

  • 在油漆中用作颜料。

但这还不是它的全部知名度。如果您是最受欢迎的“最终幻想”视频游戏系列的粉丝,铬铁矿可能会在您的脑海中敲响警钟。那是因为半宝石出现在“最终幻想 XIV”中。玩家在游戏中升级时有机会开采铬铁矿。

在日本科幻幻想之外,人们如何识别现实世界中的铬铁矿?

铬铁矿规格和特性

铬铁矿是尖晶石族的一员,其他矿物还有富兰克林石、锌锰矿、 磁铁矿和尖晶石。晶体通常很小,形成颗粒、结节或块状。

虽然铬铁矿通常不具有磁性,但一些标本会显示出轻微的磁性 - 很容易将其与磁铁矿混淆。了解在硬度、条纹和密度方面要观察的内容对于区分手部标本是必要的。

以下是铬铁矿矿物数据的概述:

  • 铬铁矿分子式:FeCr2O4

  • 矿物族: 尖晶石族

  • 成分:铬、铁、氧

  • 莫氏硬度:5.5 至 6

  • 颜色: 深灰色至黑色,红棕色,很少有棕黑色

  • 晶体结构: 等距

  • 光泽:金属至亚金属

  • 透明度: 半透明到不透明

  • 折射率:2.08 至 2.16

  • 密度:4.0 至 5.1

  • 乳沟:无

  • 断口: 贝壳状

  • 韧性:脆

  • 条痕:深褐色

  • 发光: 无

  • 多色性:无

  • 处理:自然未经处理,但可以热处理

到底有多少种不同的铬铁矿?

微铬铁矿1.jpg图片来源: 西北大学

铬铁矿的种类

铬铁矿有几个主要成分不同的品种:

铬酸铝

这是铬铁矿-八方铁矿系列中的铬铁矿铝变种。

铝钙铁矿

Alumoberezovite 是一种镁铝铬铁矿。

别列佐夫矿

Berezovskite 是一种镁质铬铁矿,主要产于德国。

铁铬铁矿

这是铬铁矿-磁铁矿系列中的一种铬铁矿变体。

豹豹

Leopardenerz 是一种在更亮的矩阵中显示豹状铬铁矿斑块的品种。

钛铬铁矿

这是一种主要产于法国的含钛铬铁矿品种。

铬铁矿品种?查看!接下来,历史!

豹_chromite.JPG图片来源:Geologicharka | Creative Commons Attribution-Share Alike 3.0 Unported 许可证

铬铁矿历史

铬铁矿于 1845 年由奥地利矿物学家 Wilhelm Karl Ritter von Haidinger 在法国正式发现。他根据其铬含量为该矿物命名。

尽管该矿物被引用为是在 1845 年发现的,但实际上在几十年前就已经对其进行了描述。 1798 年,P. Meder 将其命名为chromian-säure eisen (德语,意为“铬酸铁”),并撰写了关于在俄罗斯北部沿河岸发现这种矿物的文章。

随着时间的推移,铬铁矿有几个不同的名称,例如:

  • Chromian-säure eisen(1798 年初)

  • Eisenchrom(1798 年末)

  • Fer chromaté aluminé (1800)

  • 克罗米森斯坦 (1832)

  • 铁铬 (1841)

  • 铬铁氧体 (1843)

最后,在 1844 年,这种矿物获得了最终的名称变更。从那时起,我们就将其称为“铬铁矿”。

关于治疗,铬铁矿有什么特别之处?

铬铁矿上图:从南非西布什维尔德勒斯滕堡矿的铬铁矿精矿中提取的晶体 |图片来源: Sandatlas

铬铁矿治疗特性

大多数宝石具有特定的特性,允许水晶治疗师将它们用作治疗石来支持整体健康。

与其他黑色棕色宝石一样,铬铁矿晶体的含义之一是保护、接地和平衡。据说它的振动可以在更深层次上强化您的身体、情感和精神体。

首先,让我们看看铬铁矿如何支持您的身体健康。

身体治疗

据称,铬铁矿可以帮助您的身体吸收营养物质(主要是维生素 A 和 D),从而在细胞水平上支持您的身体健康。

它也被认为可以治疗眼部疾病和缓解肺部问题。

从情感上讲,铬铁矿有什么用?

情绪疗愈

你倾向于跳枪吗?也许你有时会让你的冲动得到最好的。如果是这样,铬铁矿可以培养一种对不愉快或压力大的情况无反应的状态。

不过,铬铁矿不会让你冷漠。相反,它会给你带来更深刻的认识,增强你的洞察力。这样,您就可以更好地根据逻辑和策略做出明智的决定,而不是让您的情绪占据主导地位。

脉轮疗愈

脉轮石是有助于激活和平衡身体中心的脉轮或能量点的水晶。

与尖晶石一样,铬铁矿利用其振动来平衡您的根脉轮。您可以在脊柱底部找到这个脉轮。顾名思义,这个脉轮将您的身体和灵魂植根于地球。它负责管理您的生存、本能和稳定性。

作为一种强大的接地石,铬铁矿可以稳定您的脉轮根——让您集中注意力、让您平静并让您感觉更安全。反过来,它可以让您专注于个人成长,提高您的生活质量。

铬铁矿的价值是多少?那要看等级!

Chromite-783965.jpg图片来源:John Sobolewski (JSS)

铬铁矿宝石特性

每颗宝石都具有可帮助专家确定其价值的特征。专家评估以确定其价值的铬铁矿特性包括颜色、切工和尺寸。

颜色

大多数铬铁矿呈黑色至灰色,但一些标本也可能呈现红棕色至棕色。这是它们的氧化铁成分的结果。

矿物中的内含物,如蛇纹石方解石橄榄石,可以改变铬铁矿的颜色和光泽。

对于铬铁矿,标本的金属性越强,它就越受追捧和越有价值。

铬铁矿主要以原石(或未切割)出售,这也是其最实惠的形式。

这种矿物的金属黑色外观造就了一些有趣的宝石。它可以刻面成流行的宝石形状,如圆形、椭圆形、八角形或万亿形切割。

凸圆形宝石一起,铬铁矿大多只是为了集体目的而被切割。然而,由于其丰富性,与市场上的其他矿物相比,切割宝石往往非常便宜。

尺寸

铬铁矿储量广泛,许多矿床出产大型标本。因此,找到大型铬铁矿标本并不难。这些大件也以非常实惠的价格出售。

晶体品质的标本并不那么容易获得,因此价格更高(尤其是对于较大尺寸的晶体)。

但在铬铁矿进入分级之前,它当然必须首先形成!

Chromite-551552.jpg图片来源:Leon Hupperichs

铬铁矿的形成和来源

形成铬铁矿需要一点岩浆作用——通常与磁铁矿或白云石等其他矿物一起形成。

铬铁矿是最早在超镁铁质岩浆中结晶的矿物之一。它通常发生在富含橄榄石的火成岩和蛇纹石岩(由火成岩转化形成)中。

铬铁矿耐风化;因此,它通常分布在冲积砂矿(湖泊或河床内的砾石或沙子沉积物)中。然而,在温度非常高的地方,矿物会被氧化和破坏。

从地理上讲,铬铁矿产地在哪里?

采矿地点

世界各地都有铬铁矿产地。最大的矿床位于南非。其他知名地区包括:

  • 加拿大

  • 古巴

  • 法国

  • 印度

  • 挪威

  • 菲律宾

  • 俄罗斯

  • 火鸡

  • 美国(谨慎)

……仅举几例。

有些铬铁矿甚至有星际根源。在陨石、小行星和月球上都发现了它!很远,对吧?

准备好在您的水晶收藏中添加一些铬铁矿了吗?让我们看看这种奇怪的矿物要花多少钱。

铬铁矿_ore.jpg图片来源:IbrZulya | 知识共享署名-相同方式共享 4.0 国际许可

铬铁矿价格和价值

幸运的是,由于铬铁矿储量丰富,宝石价格相当实惠——尤其是与更受欢迎的宝石相比。

粗铬铁矿通常是您会发现出售的最常见的矿物形式。每克铬铁矿原石价格在 0.04 美元到 0.06 美元之间。高质量的标本每克可以赚到 0.19 美元。

刻面铬铁矿价格较高,每克拉成本约为 10 至 20 美元。一些高端钻石的价格可能高达每克拉 59 美元。

铬铁矿雕刻品和凸圆形铬铁矿切工大多作为珍品出售,没有什么特别的吸引力,因此价格会因卖家而异。

在珠宝中,铬铁矿比宝石更常被用作母合金。相反,珠宝制造商用它来涂覆金属并防止其生锈。结构良好的晶体很少见,因此很难找到铬铁矿首饰。然而,它确实存在——你只需要做一些狩猎!

如果您有幸找到出售的铬铁矿首饰,价格可能会有所不同。铬铁矿戒指的零售价一般在 30 到 125 美元之间。价格上涨取决于设计中包含的金属和宝石种类。手镯和项链也是如此。

现在您对铬铁矿的价值有了更好的了解,是时候掌握如何保养您的宝石了!

铬铁矿保养和维护

铬铁矿的莫氏硬度约为 6,是一种相当耐用的宝石,但需要注意保养以保持其外观。

首先,您要避免高温并将其存放在阴凉干燥的地方。这是因为高温会导致铬铁矿的颜色和光泽褪色。

选择带有保护装置的铬铁矿首饰,并确保在参加容易受到冲击或剧烈活动(如洗碗或锻炼)之前将其取下。

清洁铬铁矿时,请使用温和的肥皂、水和软毛刷或非研磨性抹布。在存放铬铁矿之前,请确保清除所有肥皂残留物并彻底干燥。

用铬铁矿整理您的思想!

在不确定的时期找到你的中心绝非易事。也许铬铁矿可以成为您在风暴中的眼睛——在您最需要的时候为您带来毅力、平静和洞察力。

即使您住在 Easy Street,铬铁矿的深色金属外观也使它成为任何水晶显示器的独特和超凡脱俗的补充。

准备好在您的宝石收藏中安家了吗?

立即购买铬铁矿和其他不知名的宝石!

该文本是机器翻译的。 显示原件?

本文是否有帮助?

搜索Gemstone Encyclopedia

A-Z Of Gemstones

A-Z Of Gemstones

A-Z Of Gemstones
383
Additional Gemstone Information

Additional Gemstone Information

Additional Gemstone Information
60
Did You Know?

Did You Know?

Did You Know?
78
Drawing Design Awards

Drawing Design Awards

Drawing Design Awards
2
Gem Rock Auctions Verified Sellers

Gem Rock Auctions Verified Sellers

Gem Rock Auctions Verified Sellers
3
Holistic Gemstone Information

Holistic Gemstone Information

Holistic Gemstone Information
34
How To's

How To's

How To's is where you will find helpful articles from gem Rock Auctions on how to cut gemstones, select gemstones and buy gemstones.
9
News

News

News and events on Gem Rock Auctions
48
Technical Information on Gemstones

Technical Information on Gemstones

Technical Information on Gemstones
30