Name: Aragonite and calcite with botryoidal side
Brand: martinafruit.com
SKU: 28314385459
Price: 24.00 USD
Availability: InStock
Rating: 4.648000000000001 (17 reviews)

Aragonite and calcite with botryoidal side

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Description

Aragonite and calcite with botryoidal sideLocale: Sidi Ayed, Fs Mekns Region, Morocco Approx dimensions: 3 x 2. 75 x 2" Approx size: 480g (1 lb) Calcite and aragonite are polymorphs of one another, meaning that the same chemical composition (calcium carbonate) has crystallized into different crystal structures (trigonal and orthorhombic, respectively). Calcite and aragonite often grow together, and the two minerals are also frequent paramorphs of one anothera pseudomorph of the same chemical

Approx weight: 189g

Calcite has grown in a cross-hatch of thin white blades that have also formed fine lines across the surface of the quartz

Add the rough piece to your collection

Approx weight: 375g

Approx dimensions: 2 x 1 x

which give it a slightly olive-gray tint

Approx weight: 405g

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

The cluster is composed of a pair of longer intergrown points with several smaller ones fanning out from the base

There are black spheres of hematite spotting the point

it gives a slight UV reaction

UV reactivity Moderate white fluorescence when exposed to 365nm UV light