Rhodochrosite - a mineral of common anhydrous carbonates, is isomorphic to a kind of calcite and siderite. Name of grech.rodon - "Rose", and chromium - "color", determined by the color of the mineral, a synonym for - Inca stones pink.
The crystallographic crystal system: trigonal, crystals of regular shape are rare, obchyno rhombohedral, sometimes tolstotablitchatye or as skalenoedrov, granular aggregates, dense, radiating, sinter, as well as in dense masses.
Color: pale pink to dark red, and pink-red, orange-red, crimson-red, yellowish-gray, yellowish-brown, light brown.
Shine: glass.
Hardness: 3.5-4.0 on the Mohs scale.
Density: 3,40-3,65 g/cm3.
Cleavage: perfect in one direction; fracture is uneven, sometimes conchoidal, brittle.
Finding: occurs in veins and metasomatic hydrothermal formations with a high content of minerals Mn; in marine sediments, especially deep.
Deposits: Argentina - massive cortical education and stalactites, produced in the old gold and silver mines in the province of San Luis, operated during the time of the Incas, rhodochrosite therefore also called "Inca Stone", "Inca Rose" and "rozinka", this material by sawing shows curious concentric structure in the form of a flower roses, the other figure, resembling malachite, typical of dense material from the Las Kapillitas, Andalgala, Catamarca, Peru (Past-Bueno, the region of Ancash) found calcium rhodochrosite, United States (Colorado and Montana) - dense material and small crystals of pinkish-red to dark red; South Africa (N'hvaning mine in the Kalahari Desert - numerous, isolated nests of dense masses of red rhodochrosite different saturation, in operation since 1974) and Saang Hotazel mine, Kuruman - dark-red rhodochrosite with braunitom and biksbiitom), Georgia (Chiatura mine in the Caucasus), Russia (Northern Urals), and Romania in the past, Germany, Spain, Mexico, Poland (near Tarnowski Tatra mountains).
Usage: used in the jewelry business is small, mainly due to the low hardness of the mineral and raw material shortages Gemmological good quality. The mass of stones with faceted cut from 2 to 15 carats, is much larger cabochons and spherical, oshlifovannye stones from the dense, slightly translucent material. From rhodochrosite necklaces made of beads with a specific location, color tones, as well as small sculptures and souvenirs.
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