Sulphides: Jordan

Diagnostic card.

(Ti, Pb) ₁₃ As ₇ S ₂₃
Singonia monoclinic
Hardness
Specific weight 5.5-6.4
Cracked shell
Color gray
Color in powder black
Glitter metal

It is represented by characteristic tabular crystals of pseudohexagonal appearance. The color is lead-gray, partly with an iridescent reflection on the surface. It also occurs in the form of laminae and massive inclusions up to a few centimeters in size.

Origin.
Associated with carbonate rocks.

Place of Birth.
Characteristic of the Dolomites of Switzerland; Is found in the Italian Alps, including near the mountain shelter Citta di Busto on Pia-no-de-Camochi in Val-Formazza (Piedmont region). As a rarity, it is installed in the sticks of marbles of Cararra. Reported about the Jordan in Benten (Poland), Naglag (Romania), Aomori (Japan).

• 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
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• 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