Minerals | By_Name | By_Class | Silicates | QUARTZ

QUARTZ Specimens



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# QUA-227, $30.00 20% Discount - Sale Price $24.00
Dims: 4.78x0.69x0.49in (12.14x1.74x1.25cm) .... Wt: 1.17oz (33.0g) .... Loc: Diamantina, Minas Gerais, Brazil
This is a single, long, tapered, transparent quartz crystal - and it has a secret. The miner thought that it had been struck by lighting, but the damage does not have any similarity to lechatelierite. The damage is a sinuous pattern of very smooth fracture patterns along one edge of the crystal. It does not look like recent damage, nor contact damage, nor anything else I can think of. Only the crystal knows the secret of what happened to it.
# QUA-226, $30.00 20% Discount - Sale Price $24.00
Dims: 2.29x1.68x1.34in (5.83x4.26x3.40cm) .... Wt: 1.48oz (42.0g) .... Loc: Level 12, San Antonio El Grande Mine, Chihuahua, Mexico
This is a cluster of small whitish quartz crystals. One thing worth noting is that on one side of all of the crystals (probably the side that faced up in the cavity within which they formed) is a scattering of some metallic sulfide crystals, probably pyrite.
# QUA-224, $30.00 20% Discount - Sale Price $24.00
Dims: 3.83x0.80x0.55in (9.73x2.03x1.41cm) .... Wt: 1.73oz (49.0g) .... Loc: Idarado Mine, Telluride, San Miguel/Ouray Counties, Colorado, USA
This is essentially a single large, tapered, white quartz crystal, adorned at its base by dozens of small white quartz crystals. Close inspection suggests that it is really a transparent colorless crystal with a white coating - several areas of contact with external crystals show some transparency.
# QUA-222, $30.00 20% Discount - Sale Price $24.00
Dims: 3.54x2.69x2.08in (8.98x6.83x5.28cm) .... Wt: 7.8oz (222g) .... Loc: Kullu Minali District, Himachal Pradesh, India
At first glance, this quartz specimen seems rather ordinary - and thus overpriced for its size. But close examination reveals its secret: instead of having been hammered out of a vein, or broken from a larger host rock, with the attendant damage (largely fracture patterns), this cluster shows new crystal growth over that damage. And that means this specimen broke loose long ago, possibly due to an earthquake, and subsequently began the healing process. I could only find a few tiny areas of raw fracture, indicating recent (human caused) damage.
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Minerals | By_Name | By_Class | Silicates | QUARTZ

 

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