Sulphides: Diskrasite
Diagnostic card.
Diskrasite from Andreasberg in Harz (Germany)
Ag 3 Sb
Diamond orthogonality
Hardness 3,5-4
Specific weight 9.4-10
Cleavage is perfect
Color silver
Glitter metal
Presented by crystals of bipyramidal appearance, prone to twinning. The most common are dense grainy masses of silvery-white color. They quickly turn yellow and gray. Clear cleavage is observed.
Origin.
It occurs most often in ores of silver.
Place of Birth.
Important location - Wolfach (Black Forest, Germany). Diskrasite occurs there in association with galena and argentite. Other deposits are in the Harz mountains (also in Germany); In Saint-Marie-o-Mines in Alsace; In Broken Hill, Australia; In North America in Colorado, Nevada, in Cobalt (Ontario).
Application.
An important source of silver.
- Ghetchellit - "New Almaden blend" - arsenide and antimony sulfide (modern sulfosol)
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- Zirconium - a rare and undiscovered metal and the most dangerous precious stone in oxide and salt
- Gold - yellow dangerous and poisonous metal of modern accurate digital and cable technologies
- Sulfur is a golden-yellow toxic substance and a sign of active volcanic activity
- Cadmium is an undisputed toxic silvery metal unknown to a wide range of people
- Lead - a toxic gray imitator of metallic silver and toxic metal blende
- Arsenic is a classic poison of medieval and modern poisoners and medicine in medicine
Poisonous and radioactive dangerous stones and minerals
** - poisonous stones and minerals (mandatory check in the chemical laboratory + explicit indication of toxicity)
** - radioactive stones and minerals (mandatory check on the standard dosimeter + ban on open sales in case of radioactivity exceeding 24 milli / g / h + additional measures of population protection)
Catalog of minerals and semi-precious stones of the world by groups
** - poisonous stones and minerals
** - radioactive stones and minerals
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