Smoky quartz with hyalite on black tourmaline

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Description

Smoky quartz with hyalite on black tourmalineLocale: Erongo Mountain, Namibia Approx dimensions: 3 x 2. 25 x 2" Approx weight: 274g This is one of my favorite specimens of Erongo hyalite, featuring a dramatic spray of quartz crystals thick with hyalite, perched atop a large piece of black tourmaline (schorl). The glossy schorl has the classic trigonal 'Mercedes' termination characteristic of Erongo material, with intricate growth patterns across the surface. The sides of the schorl are imprinted

Approx weight: 208g

Approx weight: 60-110g

Near the 'top' back there is a chunk of dark gray mineral with cubic surface patterning I suspect to be galena because it commonly accompanies pyrite

UV reactivity Hyalite is so strongly UV reactive that you can see it in sunlight

The fossils form in shallow water conditions of lakes or salt water shores

the groupings often resembling cities and architectural forms

This specimen features hydroxyapophyllite crystals with lizardite and calcite on matrix

It grows sculptural elongated and angular points with nice striations

The example highlighted in the second image is from Option D

a common habit for the barite is to instead grow in a round tapered shape like a pointed snail shell—larger ones look like a landform out of an old episode of Star Trek

Approx weight: 437g

but that doesn't seem to apply here where the square is distorted like a bad acid trip

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