Calcite on Prehnite Crystal Cluster | 96 grams | Mumbai, India Tetrahedrite This piece displays extremely well

This piece displays extremely well and is a very desirable type as many research organizations are always on the look out to find more for their research

superb shape and is a good size

very few specimens show any crust

Here we have for you a nice looking end cut of a Sahara Desert NWA unclassified meteorite weighing 82

Calcite on Prehnite Crystal Cluster | 96 grams | Mumbai, India Tetrahedrite This piece displays extremely wellCalcite is found throughout the world in sedimentary, metamorphic, and igneous rocks. Some geologists consider it to be a "ubiquitous mineral" one that is found everywhere. Calcite is the principal constituent of limestone and marble. Penhnite can form prismatic, tabular, or pyramidal crystals, but usually occurs in botryoidal, reniform, stalactitic, granular, or compact habits. It is usually green in colour, but may be white, colourless, yellow, or