Botryoidal aragonite and calcite Coprolite This specimen also has an

This specimen also has an irregular cluster of attempted-twinned-growth on one side

they reproduce quickly and are hardy to a range of conditions

A few small cubic fluorite crystals also spot the specimen

This specimen displays the dual-tone fluorescence especially well

Keepers usually advise to remove food mold that may entrap mancae (baby isopods)

Botryoidal aragonite and calcite Coprolite This specimen also has anLocale: Sidi Ayed, Fs Mekns Region, Morocco Approx dimensions: 3 x 2. 5 x 2" Approx size: 365g 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