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$9.00
价格
2981
4

CRYSTAL SPECIMEN 97.7 CARATS GTT 1889

存货单位
尺寸(毫米)
0.000 x 0.000 x 0.000mm
重量 (cts)
颜色

 

CRYSTAL SPECIMEN FROM INDIA

SIZE  36X26X22 MM

 

 

A crystal is a solid material whose constituent molecules, atoms or ions are arranged in orderly geometrical patterns. Crystal shape is the expression of the mineral’s internal atomic structure. By volume and weight the largest concentration of crystals in the Earth is part of the Earth’s bedrock. Crystals are formed through magmatic and metamorphic processes during volcanic eruptions. In general larger crystals (crystalline rocks) were formed in areas of slow cooling molten rock, and smaller crystals in areas of more rapid cooling. Other crystals are also formed through precipitation of fluids (watery solutions), generally water, to form druses or quartz. However the temperature, pressure, chemical conditions and also the amount of space available are some of the factors that affect their development.

 

The scientific study of crystals is known as crystallography. The process of crystal formation is called crystallisation or solidification. The word crystal is derived from the Ancient Greek word κρÏσταλλος (krustallos), meaning “ice” and “rock crystal”.

 

Even though there are thousands of minerals their crystal shape can be grouped on the basis of their symmetry. There are 7 categorical structure based on symmetry of the resulting crystals.

 

They are:

Cubic- has three mutually perpendicular axes of equal length (common forms are tetrahedron (4 faces), cube (6 faces), octahedron (8 sides), dodecahedron (10 sides), trapezohedron (24 faces) and hexoctahedron (48 faces)).

Tetragonal- three axes intersecting at 90 º, of two which are equal length (forming double pyramids and prisms).

Hexagonal- six sided prism

Trigonal- posses a single 3 fold axis of rotation

Orthorhombic- have three axes at 90 º, all have different lengths (forming rhombic prisms or dipyramids –two pyramids stuck together).  

Monoclinic- have three axes of unequal length, two intersect at an angle other than 90º (like skewed tetragonal crystals forming prisms and double pyramids).

and Triclinic- have three axes of unequal length (usually not symmetrical)

 

Optical characteristics are derived from their chemical composition and crystal structure. Optical characteristics include colour, optic character, refractive index, birefringence, dispersion, fluorescence, phosphorescence and clarity.

 

Is it good to own a crystal or crystals? Crystals are here on Earth to serve our needs.

Crystals and gemstones have been used and appreciated since humans walked on Earth. Their natural beauty and lustre provide endless source of fascination. Crystals are adornment for both our bodies and minds. They serve a useful role in enhancing our lives by the myriad of ways they can be used, through jewellery, mind and body healing. Crystals possess meditative and metaphysical characteristics and are used for personal development, soul and body work.

 

Crystals are said to provide clarity of mind and thought. Raises one’s vibration, balances auric field and initiates meditation state of mind.

 

Crystals help promote the well-being and health of the mental, spiritual and physical bodies through their ability to conduct electromagnetic currents and balance them. This can be seen through the use of quartz crystal which contains efficient electrical conductivity and is a feature on every clock, TV, PC and gadgets.

 

Crystals are available in: necklaces, pendants, rings, earrings, tumbled stones, crystal clusters, spheres, roughs, carvings, wands, pyramids, obelisks, pendulum and geometric shapes.

 

There is no better time to start wearing crystals than now. Wearing or carrying a crystal close to you will start you on a never ending personal journey of inward and outward discovery.

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gem traders
gem traders
Gem Traders has an established market in Australia for gemstones and we added opals to compliment this range trading a sopalplus. Our main gemstones besides boulder opals and doublets are Rubies, Sapphires, Amethyst, Chrysoprase, Garnets and carved gemstones.
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lomar65
积极的
1周前
2.5 cts Tri shape Natural 5 mm Coober Pedy Opal in Presentation Box
2.5 cts Tri shape Natural 5 mm Coober Pedy Opal in Presentation Box
Thank you, It's so great to get some Australian opals, and although small, the opalescence is fabulous and you have cut them so well, I love them, and a great price as well. I am so happy, thank you so much ..Lou
lomar65
积极的
1周前
2.3 cts Marquis shape 20 pcs large Natural Crystal Opal n Presentation Box
2.3 cts Marquis shape 20 pcs large Natural Crystal Opal n Presentation Box
These are amazing, I could not believe the colors, it was like opening a tiny box of sweets. Thank you so much, I love Australian opals. Great price and very quick shipping. Thank you again .Lou
caroline416
积极的
2周前
CUTE LEMON QUARTZ SILVER EARRINGS  5.00 CTS   GTJA185
CUTE LEMON QUARTZ SILVER EARRINGS 5.00 CTS GTJA185
Very cute earrings. Never disappointed as items always look like photos and are as described from this seller. Great customer service. Seller always responds quickly to questions. Happy once again. Thank you so much.
adabob2
积极的
3周前
735 Cts  Australian  Specimen  PPP 363
735 Cts Australian Specimen PPP 363
Just Right! Thank You!
adabob2
积极的
3周前
Fluorescent Minerals calcite cubes Brazil  MM 96
Fluorescent Minerals calcite cubes Brazil MM 96
Just Right! Thank You!

10.00%
优惠券代码 GEMTRADERDEAL
有效期至
17th Oct 2023

审计

Gemstone Sheriff计划允许我们的会员请求对任何产品进行审核,该审核由独立的 Gemologist 人员完成,该资格人员评估商品描述和图片的准确性。

送货细节

船运:
$16.00 :通过 Registered Shipping 计算天数
发货自:
Australia

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  • paypal
该卖家在 Australia 的交易中添加 10.00% 税。

概述

列表类型 : Standard
产品编号 : 232636
开始 : 15th September 2023 08:00 pm PDT
* 所有价格均以:货币为单位