Almandine-Pyrope Gemstones by Size
This table shows distribution of Almandine-Pyrope gemstone sizes that are listed on this site. This can give a good indication as to the general availability of this gemstone in different sizes.
0.29ct to 4.88ct4.88ct to 9.47ct9.47ct to 14.05ct14.05ct to 18.64ct18.64ct to 23.23ct23.23ct to 27.82ct27.82ct to 32.41ct32.41ct to 36.99ct36.99ct to 41.58ct41.58ct to 46.17ct
General Information |
---|
A variety or type of: | Garnet Group |
---|
Varieties/Types: | Rhodolite - A rose-red variety of Garnets from the Almandine to pyrope series. |
---|
Other Names/Trade Names: | |
---|
Chemical Formula | gemdat.org, Management Team (2012) |
---|
Photos of natural/un-cut material from mindat.org |
---|
|
Physical Properties of Almandine-Pyrope |
---|
Mohs Hardness | 7.5gemdat.org, Management Team (2012) |
---|
Specific Gravity | 3.62 to 4.20gemdat.org, Management Team (2012) |
---|
Cleavage Quality | Nonegemdat.org, Management Team (2012) |
---|
Fracture | Conchoidalgemdat.org, Management Team (2012) |
---|
Optical Properties of Almandine-Pyrope |
---|
Refractive Index | 1.730 to 1.810gemdat.org, Management Team (2012) |
---|
Optical Character | Isotropicgemdat.org, Management Team (2012) |
---|
Dispersion | 0.022 to 0.027gemdat.org, Management Team (2012) |
---|
Colour |
---|
Colour (General) | Red, purple-red, pinkish red, red-orange, deep red to almost blackgemdat.org, Management Team (2012) |
---|
Causes of Colour | Reddish purple (rhodolite), Fe2+ in distorted cubic coordinationW. William Hanneman, Pragmatic Spectroscopy For Gemologists (2011) |
---|
Transparency | Transparentgemdat.org, Management Team (2012) |
---|
Lustre | Vitreousgemdat.org, Management Team (2012) |
---|
Crystallography of Almandine-Pyrope |
---|
Crystal System | Isometricgemdat.org, Management Team (2012) |
Further Information |
---|
Mineral information: | Almandine-Pyrope information at mindat.org |
---|