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Locale: Boekenhouthoek
though it does have some interesting cactus-quartz growth on that top portion
but overall reaction is poor
Tiny points of quartz often spot these specimens
I've found White Sharks to be a bit antisocial
Aragonite and calcite with pocket of calcite rhombs Chalcedony nodules Locale: BoekenhouthoekLocale: Sidi Ayed, Fs Mekns Region, Morocco Approx dimensions: 3. 5 x 2 x 2" Approx size: 425g (0. 9 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
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