Datolite
Lane & Son traprock quarries (Lane's Quarry), Westfield, Hampden County, Massachusetts, USA
0.58 carats
© Rarestone.com
Datolite Gemstones by Colour
This table shows the variety of hues this gemstone can be found in. Click on a photo for more information.
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Datolite Gemstones by Size
This table shows distribution of Datolite 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.
Contributed photos
Lightest:0.58 cts
Heaviest:7.85 cts
Average:2.80 cts
Total photos:8
Do you have a larger Datolite? Why not upload a photo?
| General Information | ||||||||||||
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| Chemical Formula |
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| Physical Properties of Datolite | ||||||||||||
| Mohs Hardness | 5 to 5.5, Blue Chart Gem Identification (2010) More from other references | |||||||||||
| Specific Gravity | 2.90 to 3.00, Blue Chart Gem Identification (2010) More from other references | |||||||||||
| Cleavage Quality | None, Gemstones (2009) | |||||||||||
| Fracture | Conchoidal, Gemstones (2009) | |||||||||||
| Optical Properties of Datolite | ||||||||||||
| Refractive Index | 1.621 to 1.675, Blue Chart Gem Identification (2010) More from other references | |||||||||||
| Optical Character | Biaxial/-, Blue Chart Gem Identification (2010) More from other references | |||||||||||
| Birefringence | 0.044 to 0.045, Blue Chart Gem Identification (2010) DoublingMore from other references | |||||||||||
| Pleochroism | Nil, Gemstones (2009) | |||||||||||
| Dispersion | 0.016, Gemstones (2009) | |||||||||||
| Colour | ||||||||||||
| Colour (General) | Yellowish, greenish, colourless, white, orange-brown, Gemmological Tables (2004) More from other references | |||||||||||
| Transparency | Transparent,Translucent, Blue Chart Gem Identification (2010) More from other references | |||||||||||
| Lustre | Vitreous, Gemstones (2009) | |||||||||||
| Fluorescence & other light emissions | ||||||||||||
| Fluorescence (General) | Inert to blue, Blue Chart Gem Identification (2010) | |||||||||||
| Fluorescence (Short Wave UV) | Inert to blue, Blue Chart Gem Identification (2010) More from other references | |||||||||||
| Crystallography of Datolite | ||||||||||||
| Crystal System | Monoclinic, Blue Chart Gem Identification (2010) More from other references | |||||||||||
| Habit | Characteristic short prismatic crystals, Gems, Sixth Edition (2006) More from other references | |||||||||||
| Geological Environment | ||||||||||||
| Where found: | Datolite occurs as a secondary mineral in mafic igneous rocks, in geodes in tuffs or skarns in limestones, in serpentinites and hornblende schists and in some ore veins., Gems, Sixth Edition (2006) | |||||||||||
| Further Information | ||||||||||||
| Mineral information: | Datolite information at mindat.org | |||||||||||
| Significant Gem Localities | ||||||||||||
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