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Rare Large specimen of Olshanskyite crystal;s on Roweite -13.5 x 8.5 x 5.0 cm - 530gr

Lot reference 18224927
Rare Large specimen of Olshanskyite crystal;s  on Roweite -13.5 x 8.5 x 5.0 cm - 530gr

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Shijiangshan Mine, Ulanhad League, Inner Mongolia, China

Mineral Form/ Type Meteorite: Crystals on matrix
Supplement: Olshanskyiite, Roweite, Quartz
Weight (in g): 530 g
Origin (Country): China
Origin (Region/ City): Shijiangshan Mine, Ulanhad League, Inner Mongolia
Dimensions (in cm): 13.5 x 8.5 x 5.0 cm

Dimensions: 13.5 x 8.5 x 5.0 cm
Weight: 530 g

Describing this mineral cluster as rare is placing an extreme understatement; Olshanskyite, an extremely rare Borate mineral, had only been confirmed as small microcrystals until the mid 2017s when a surprise find from Shijiangshan Mine in Inner Mongolia found these pockets of borate minerals, including another already rare mineral: Roweite. Currently the Shijiangshan Mine is the only locality on Earth thus far to have produced centimeter large crystals of Olshanksyite; the other two known localities are the Fuka Mine in Japan, and Titovskoe B Mine in Siberia, Russia, both of which produces sub millimeter crystals .

This specimen had the rare opportune makeup of having both of these minerals in one sitting making this an opportunity of a lifetime to have, as well as the immense size of the specimen makes it an even harder to miss opportunity! The brown Roweite crystals are extremely well formed, resembling that of Baryte blades, while the very sharp and translucent clear Olshanskyite crystals find themselves nestled in and throughout the entire specimen with notable vugs filled with radiating sprays of these rare crystals (captured in the photos) and sitting on a crystalline Quartz matrix while showcasing the extreme sharpness of each crystal's terminations and clarity.

The chemical formula for the minerals are as follows:

Olshanskyite: Ca2[B3O3(OH)6](OH) · 3H2O
Roweite: Ca2Mn2+2B4O7(OH)6

Sg JC Minerals  

Reviews given: 3
Member since: March 22, 2017
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    LDW51811 May 18, 2018

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    GAIAE May 9, 2018

    Response by seller
    Hi, I understand you are unhappy about the size of the specimen.

    However, I had stated in the description its size. It was also on the title and that clearly stated its size as well.

    Unfortunately, your negative feedback was uncalled for without first reaching out to us for clarification about the size, of which it was clearly stated everywhere, or your displeasure.

    Regards,
    JC Minerals
    --

    Salut, je comprends que vous n'êtes pas satisfait de la taille de l'échantillon.

    Cependant, j'avais indiqué dans la description sa taille. C'était aussi sur le titre et cela indiquait clairement sa taille.

    Malheureusement, vos commentaires négatifs ont été déplacés sans d'abord nous contacter pour obtenir des éclaircissements sur la taille, dont il a été clairement indiqué partout, ou votre mécontentement.

    Cordialement,
    JC Minerals

View all 3 reviews

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United States $41.57
China $41.57
Singapore $41.57
United Kingdom $41.57
Rest of Europe $41.57
Anywhere else $41.57

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