150 grams Kyanite specimen parcel RB44

4401

SKU
寸法(mm): x x mm
重さ (CT)
Certified Gemstones: いいえ
タイプ: Specimen
色

KYANITE SPECIMENS

PARCEL AS PER IMAGE

LARGETS PIECE 54 x 13 x 12 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
寸法(mm): x x mm
重さ (CT)
Certified Gemstones: いいえ
タイプ: Specimen
色

KYANITE SPECIMENS

PARCEL AS PER IMAGE

LARGETS PIECE 54 x 13 x 12 MM

SOURCE FROM BRAZIL

配送業者	配送先Australia	その他の国への配送
FedEx	$12.00 / 3	$39.00 / 10
：国 FedEx 、 2以上のアイテムを含む注文で$12.00に割引されます世界のその他の地域 FedEx 、 2以上のアイテムを含む注文で$39.00に割引されます
Registered Shipping	$9.00 / 7	$16.00 / 21
：国 Registered Shipping 、 2以上のアイテムを含む注文で$9.00に割引されます世界のその他の地域 Registered Shipping 、 2以上のアイテムを含む注文で$16.00に割引されます