Catalogue and magic properties of the stone -->rus Schorl, BURGERIT
Description characteristic of the mineral.
Schorl is a black variety of tourmaline. Widespread in nature most widely jetstones are named schorls. Obtained for decorative aims (not jeweller variety of tourmaline). The characteristic for tourmalines three-cornered form of section or divaricate crystals serves as a diagnostic sign. Can meet as black sticks-pluggings in Quartzs-hair stone (enough widespread including).
Burgerit - brown, black with brown-red irisation of Tourmaline of not jeweller quality. Unlike an absolutely opaque schorl, can examine with x-rays or be partly transparent on bright light.
Poisonous and radioactive risky hazardous cargo stone and minerals
** - are poisonous stone and minerals (mandatory verification is in the chemical analysis laboratory + on toxicity) ** - are radioactive stone and minerals (mandatory verification on a regular dosimeter + prohibition on the opened sales in the case of radio-activity over 24 milliroentgens / hour + additional measures of protection of people) All of rare stone are subject obligatory verification on a regular dosimeter on the possible level of radiation and in a chemical laboratory on absence default of poisonous and evaporating components, dangerous for a human people and environment nature
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A catalogue of stone is all of stone in alphabetical order