Quartz
Amethyst quartz
Item-No.: MIN5993 Price: 70.00 EUR
Báňská Stiavnica, Slovakia
Quartz
Item-No.: 0300106 Price: 25.00 EUR
Pribram, Schacht Lill, CZ
Quartz
Item-No.: 3787 Price: 89.00 EUR
Mina Nasca Ica, Peru
Quartz
Item-No.: 3802 Price: 98.00 EUR
Mina Nasca Ica, Peru
Quartz
Item-No.: MIN6025 Price: 48.00 EUR
Amethysta do Sul, Rio Grande do Sul, Brazil
Quartz
Item-No.: MINS1653 Price: 6.00 EUR
Březové Hory, Příbram, Czech Republic
Quartz
Item-No.: MIN0982 Price: 58.00 EUR
Ametista do Sul, Rio Grande do Sul, Brasil
Quartz
Item-No.: MIN1326 Price: 76.00 EUR
Touissit, Touissit District, Jerada Province, Oriental Region, Morocco
Quartz
Item-No.: MIN0236 Price: 87.00 EUR
Aurora Mine, Charcas, Mun. de Charcas, San Luis Potosí, Mexico
Quartz
Item-No.: MIN0344 Price: 22.00 EUR
Libodřice, Kolín, Central Bohemia Region, Bohemia, Czech Republic
Quartz after Danburite
Item-No.: MIN0263 Price: 115.00 EUR
Aurora Mine, Charcas, Mun. de Charcas, San Luis Potosí, Mexico
Quartz with Arsenopyrite
Item-No.: MIN5436 Price: 48.00 EUR
Panasqueira Mine, Couto Mineiro da Panasqueira, Panasqueira, Covilhã, Castelo Branco District, Portugal
Quartz with Hematite
Item-No.: LM63 Price: 29.00 EUR
Zaječov, Beroun, Central Bohemia Region, Bohemia, Czech Republic
Quartz, Calcite, Sfalerite
Item-No.: 0300117 Price: 10.00 EUR
Pribram, Schacht Lill, CZ
Quartz, Sfalerite
Item-No.: MIN5790 Price: 165.00 EUR
Cavnic (Kapnic), Maramures, Co., Romania
Scepter quarz
Item-No.: KR2237 Price: 17.00 EUR
Andranondambo, Maromby Commune, Amboasary Department, Anosy (Fort Dauphin) Region, Tuléar (Toliara) Province, Madagaskar
Scepter quarz
Item-No.: KR2238 Price: 17.00 EUR
Andranondambo, Maromby Commune, Amboasary Department, Anosy (Fort Dauphin) Region, Tuléar (Toliara) Province, Madagaskar
Scepter quarz
Item-No.: KR2239 Price: 17.00 EUR
Andranondambo, Maromby Commune, Amboasary Department, Anosy (Fort Dauphin) Region, Tuléar (Toliara) Province, Madagaskar
Scepter quarz
Item-No.: KR2240 Price: 17.00 EUR
Andranondambo, Maromby Commune, Amboasary Department, Anosy (Fort Dauphin) Region, Tuléar (Toliara) Province, Madagaskar
Scepter quarz
Item-No.: KR2241 Price: 17.00 EUR
Andranondambo, Maromby Commune, Amboasary Department, Anosy (Fort Dauphin) Region, Tuléar (Toliara) Province, Madagaskar
Scepter quarz
Item-No.: KR2242 Price: 17.00 EUR
Andranondambo, Maromby Commune, Amboasary Department, Anosy (Fort Dauphin) Region, Tuléar (Toliara) Province, Madagaskar
Siderite and quartz
Item-No.: MIN0161 Price: 28.00 EUR
Rudňany, Spišská Nová Ves Co., Košice Region, Slovakia
Zepterquarz
Item-No.: 3794 Price: 75.00 EUR
Bánská Stiavnica, Slovakia
| Synonyms: | Alpha-Quartz, Azetulite, Brazilian Pebble, Lake County Diamonds, Lemurian Seed Crystal, Lodolite, Low Quartz, Mexican Diamond |
| Classification: | Oxides |
| Chemical formula: | SiO2 |
| Crystal system: | Trigonal |
| Density (g/cm3): | 2,65 - 2,66 measured, 2,66 calculated |
| Tenacity: | Brittle |
| Cleavage: | none |
| Fracture: | Conchoidal |
| Hardness (Mohs): | 7 |
| Colour: | Colorless, purple, rose, red, black, yellow, brown, green, blue, orange |
| Lustre: | Vitreous |
| Streak: | White |
| Application: | Ore for silicon, glassmaking, frequency standards, optical instruments, silica source for concrete setting, chemical industry - filtering agents. |