Calcite
Ogano city, Chichibu county, Saitama pref., Japan
Source for Quick lime and Sodium cyanide
Field of view: 30 mm. A group of calcite crystals. The rhombohedral transparent crystals are calcite. The massive grayish-white basement is the host limestone.
Recovered from a pocket of a recrystallized zone of a limestone block in an accretionary complex.
Calcite from this location was described in 1934.
Field of view: 30 mm. A group fo calcite crystals. The truncated rhombohedral crystals are calcite. The massive grayish-white basement is the host limestone.
Other localities
- Chichibu Mine (Hydrothermal Skarn, Scalenohedral)
- Horado Mine (Hydrothermal Skarn, Granular)
- Nakatatsu Mine (Hydrothermal Skarn, Rhombohedral)
- Waga-Sennin Mine (Metasomatic Skarn, Scalenohedral)
- Choshi (Andesite, Granular)
- Kodomari (Hydrothermal, Scalenohedral)
- Shobusawa (Au-Ag vein, Scalenohedral)
- Mount Futago (Limestone, Rhombohedral)
- Koma (Calcareous sandstone, Twin)
- Cotswolds (Oolitic limestone, Granular)
- Iwakake (PrP facies, Scalenohedral)