150 grams Kyanite specimen parcel RB52

3838

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Dimensions (mm): x x mm
Weight (cts)
Certified Gemstones: No
Type: Specimen
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KYANITE SPECIMENS

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LARGETS PIECE 62 x 18 x 9 MM

SOURCE FROM BRAZIL

Kyanite is a polymorph with two other minerals; andalusite and sillimanite. A polymorph is a mineral that shares the same chemistry but a different crystal structure with another, or other, minerals. Kyanite is an attractive mineral that has a near sapphire like blue color in some especially nice specimens. Kyanite has a unique characteristic in that it has a wide variation in hardness, in the same crystal. The hardness of kyanite is approximately 4.5 when scratched parallel to the long axis of the crystal and approximately 6.5 when scratched perpendicular to or across the long axis. Other minerals usually have variable hardness on different crystal faces due to a different concentration and oreintation of the atoms in the structure

SKU
Dimensions (mm): x x mm
Weight (cts)
Certified Gemstones: No
Type: Specimen
Colours

KYANITE SPECIMENS

PARCEL AS PER IMAGE

LARGETS PIECE 62 x 18 x 9 MM

SOURCE FROM BRAZIL

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Australia Registered Shipping is discounted to $9.00 on orders with 2 or more items Rest of the world Registered Shipping is discounted to $16.00 on orders with 2 or more items

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freeman123
on 5 Apr, 2024

Positive

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on 4 Mar, 2024

Positive

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