Specimen #441

Name: Prehnite, Calcite, Quartz, Heulandite

Type: Mineral

Locality: Goboboseb Mountains, Brandberg Region, Namibia

Favorite? N

Fluorescent? N

Size: 11 x 6 x 3 cm

Weight: 190

Acquired: 2007-05-08

Source: John Betts

Label: N

Comment: Distinct crystals of lustrous green prehnite in crystal aggregates up to 20 mm across intergrown with milky quartz crystals up to 14. Scattered throughout are transparent bladed heulandite crystals up to 2 mm and colorless calcite crystals to .5 mm. No damage. Overall size of mineral specimen: 11x6x3 cm. Size of individual crystals: .5-13 mm.

Minerals: Calcite (CaCO₃) Heulandite Prehnite (Ca₂Al₂Si₃O₁₀(OH)₂) Quartz (SiO₂)

There are 6 pictures on file

M00441-01.jpg:

Prehnite, Calcite, Quartz, Heulandite, Goboboseb Mountains, Brandberg Region, Namibia - 11 x 6 x 3 mm

M00441-02.jpg:

Prehnite, Calcite, Quartz, Heulandite, Goboboseb Mountains, Brandberg Region, Namibia

M00441-03.jpg:

Prehnite, Calcite, Quartz, Heulandite, Goboboseb Mountains, Brandberg Region, Namibia

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