Difference between revisions of "Morganite"
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| + | [[File:Evening bag MFA 2008.1331.jpg|thumb|Evening bag<br> MFA# 2008.1331]] | ||
== Description == | == Description == | ||
| − | + | [[File:Morganite - Wiki-178682.jpg|thumb|Beryl (var. Morganite)<br>Image: Rob Lavinsky [irock.com]]] | |
| − | A rose colored transparent beryl that is used as a gemstone. Morganite is composed of a beryllium aluminum silicate. Ranging in color from a rose-pink to a rose-red, morganite is mined in Madagascar. | + | A rose colored transparent [[beryl]] that is used as a gemstone. Morganite is composed of a beryllium aluminum silicate. Ranging in color from a rose-pink to a rose-red, morganite is mined in Madagascar. |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
| − | + | [[[SliderGallery rightalign|Beryl IR-ATR RRUFF 40002.png~IR-ATR (RRUFF)|Beryl raman RRUFF 40002.png~Raman (RRUFF)]]] | |
morganita, berilo rosa (Esp.); morganite (Fr.) | morganita, berilo rosa (Esp.); morganite (Fr.) | ||
| − | == | + | ==Physical and Chemical Properties== |
| − | + | * Hexagonal system with prismatic crystals usually striated lengthwise | |
| + | * Cleavage is poor in one direction | ||
| + | * Fracture = uneven to conchoidal | ||
| + | * Luster = vitreous | ||
| + | * Streak = colorless | ||
| + | * Pleochroism = weak | ||
| + | * Fluorescence = none to weak pink (LW and SW) | ||
| + | * Synthetic stones may appear opaque and dull red under long UV light. | ||
| + | {| class="wikitable" | ||
| + | |- | ||
| + | ! scope="row"| Composition | ||
| + | | Be3Al2(SiO3)6 | ||
| + | |- | ||
| + | ! scope="row"| Mohs Hardness | ||
| + | | 7.5 - 8.0 | ||
| + | |- | ||
| + | ! scope="row"| Density | ||
| + | | 2.68-2.83 g/ml | ||
| + | |- | ||
| + | ! scope="row"| Refractive Index | ||
| + | | 1.57 - 1.60 | ||
| + | |- | ||
| + | ! scope="row"| Birefringence | ||
| + | | 0.007 - 0.008 | ||
| + | |} | ||
| − | == | + | == Comparisons == |
| − | + | [[media:download_file_453.pdf|Properties of Common Gemstones]] | |
| − | |||
| − | |||
| − | * | + | ==Resources and Citations== |
| + | * Gem Identification Lab Manual, Gemological Institute of America, 2016. | ||
| + | * Wikipedia: [https://en.wikipedia.org/wiki/Morganite_(gem) Morganite] Accessed Dec 2022 | ||
| + | * Jack Odgen, ''Jewellery of the Ancient World'', Rizzoli International Publications Inc., New York City, 1982 | ||
| + | * ''Van Nostrand's Scientific Encyclopedia'', Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976 | ||
| + | * G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 | ||
[[Category:Materials database]] | [[Category:Materials database]] | ||
Latest revision as of 12:14, 12 December 2022
Description
A rose colored transparent Beryl that is used as a gemstone. Morganite is composed of a beryllium aluminum silicate. Ranging in color from a rose-pink to a rose-red, morganite is mined in Madagascar.
Synonyms and Related Terms
morganita, berilo rosa (Esp.); morganite (Fr.)
Physical and Chemical Properties
- Hexagonal system with prismatic crystals usually striated lengthwise
- Cleavage is poor in one direction
- Fracture = uneven to conchoidal
- Luster = vitreous
- Streak = colorless
- Pleochroism = weak
- Fluorescence = none to weak pink (LW and SW)
- Synthetic stones may appear opaque and dull red under long UV light.
| Composition | Be3Al2(SiO3)6 |
|---|---|
| Mohs Hardness | 7.5 - 8.0 |
| Density | 2.68-2.83 g/ml |
| Refractive Index | 1.57 - 1.60 |
| Birefringence | 0.007 - 0.008 |
Comparisons
Properties of Common Gemstones
Resources and Citations
- Gem Identification Lab Manual, Gemological Institute of America, 2016.
- Wikipedia: Morganite Accessed Dec 2022
- Jack Odgen, Jewellery of the Ancient World, Rizzoli International Publications Inc., New York City, 1982
- Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
- G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971