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Emerald & Biotite On Quartz

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LJM730698

Emerald & Biotite On Quartz

Ex. Leo Jahaan Collection

Description Tabs

Description
Locality: 
Mianyang Prefecture, Sichuan Province, China (Peoples Republic)
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 4.7 × 1.6 cm
Description

Here is a fascinating and highly unusual formation of emerald.

Apparently geological movement has caused extreme fragmenation of a large emerald crystal (or possibly multiple crystals), the pieces of which have then been later conglomerated by a quartz matrix.

The entire rear of the specimen is speckled with lustrous biotite crystals.

Good size and very interesting specimen making an unusual addition to any collection.

See the Video tab above to view the specimen in detail.

Ex. Collection of Leo Jahaan

Mineral Data
What's on the rock

Emerald

Variety Of: 

Beryl

Formula: 
Be3Al2(Si6O18)
Strunz: 
9.CJ.05
Hardness: 
7.5 - 8.0
Formula: 
Be3(Al,Cr)2Si6O18
Crystal System: 
Hexagonal
Hardness: 
0.0

Biotite

Group Parent: 
Mica Group

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White
Video

Emerald with Biotite on Quartz Matrix

Jahaan Minerals

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

Please read the dimensions of the specimen, as the size of minerals in photos can be misleading.

To see the details shown in close-up macro photos, you may require a high quality magnifying glass or jeweler's loupe.

Care has been taken to accurately display the colors of the specimen. However, please be aware that computer monitors and phone screens each display colors slightly differently. Differences in light brightness and light source can also drastically alter the appearance of mineral colors. Therefore please be aware that while these photos are accurate and colors have not been enhanced, what you see on your screen may vary slightly from what you see in your hand, and may require specific lighting conditions (usually brighter is better).

Information regarding the specimen's found locality and mineral identification is believed to be correct, however due to the complexities of ID'ing minerals and tracking source locations in rare cases this data may be imprecise.

If you have any questions or concerns please don't hesitate to send a message.