A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Apatite in calcite |
|---|---|
| Description | Apatite, Ca5(PO4)3(OH,F,Cl) is the most common phosphate mineral. In this specimen it is brown and is accompanied by whitish calcite. Appatite is present in many rocks of different sorts but is generally too fine grained and disseminated to be seen easily. Large well formed crystals though can be found in certain contact metamorphic rocks - this photo shows an example. The crystal of apatite in the center is about 1 cm across. Besides the brown color shown, apatite may be transparent to opaque in shades of green, brown, yellow, white, red, and purple. Some yellow-green (asparagus stone) and blue-green (manganapatite) varieties are used in jewelry. |
| Chronostratigraphy | Proterozoic |
| Geologic province | Grenville |
| Location | Canada ▹ Ontario ▹ Renfrew. Near Eganville. |
| Photographer | Darla Sondrol. 2001-06-29. |
| Collection | University of North Dakota Mineralogy Collection #983. |
| Key words | apatite, calcite, Ontario, Canada |
| Tech details | 569 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 966 |
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