Cronstedtite

333 / $378

AVAILABLE

Radial formations composed of black shiny crystals of cronstedtite in paragenesis with brown siderite on a massive quartz matrix. Historical sample from collection of Dr. František Novák.

Formula:

Fe+22Fe+3 (SiFe+3)2O5 (OH)4

Group:,
Group:

Silicates

Country:

Locality:

Kutná Hora, Rejzská vein at the level of gallery of the 14 Pomocníků

Dimensions:

9,5 x 8,5 x 3 cm

Color:

,

Zodiac:

Taurus, Capricorn

Zodiac:, ,
Categories: Minerals, SKU: JL072
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Get / $ off 1st purchase.
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Free postage for CR from 3000 CZK and for SK from €.

Description

It occurs on some hydrothermal veins or metamorphic deposits. Due to its rarity, it is one of the most interesting Czech minerals.

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Additional information

Formula:

Fe+22Fe+3 (SiFe+3)2O5 (OH)4

Group:,
Group:

Silicates

Country:

Locality:

Kutná Hora, Rejzská vein at the level of gallery of the 14 Pomocníků

Dimensions:

9,5 x 8,5 x 3 cm

Color:

,

Zodiac:

Taurus, Capricorn

Zodiac:, ,
Categories: Minerals,