|
|
Build Your Online Product Catalogs?
| Product Name: |
Uvite Tourmaline
|
| Supply Ability: |
more ten thousands ton |
| Related proudcts |
|
| Specifications |
more |
| Price Term: |
|
| Port of loading: |
|
| Minimum Order |
|
| Unit Price: |
|
|
General Description
Uvite is a Calcium Iron Magnesium Aluminum Boro-silicate Hydroxide with the Chemistry formula: Ca(Mg, Fe)3Al5MgSi6O18(BO3)3(OH)3. Uvite is the magnesium/iron-rich member of the group and has one notable exception to the typical tourmaline generalized formula. The usual 6 aluminums are reduced to 5, with a magnesium inserted into one of the aluminums' positions. Despite having so many coloring ions like iron and magnesium, some specimens of uvite can be colorless. The typical specimens of uvite on the mineral markets tend to be an interesting dark green to almost black in color. Other properties of uvite seem to fall in the norm for a tourmaline, except uvite tends to form stubby crystals rather than the long prismatic crystals of its close cousins. These crystals, though, are well formed and show all the interesting features that make tourmaline crystals so much fun to collect.
Appearance
Crystal or powder
Origins
Notable Occurrences is China; Sri Lanka; USA and in other Skarn localities.
Applications
As mineral collection specimens.
Toxicology
Non-toxic (please refer to MSDS)
Important Properties
The Color of Uvite is green, colorless, white, light brown or black. Tran***rency: Uvite Crystals are tran***rent to translucent, some dark black specimens can look opaque. Crystal System is Trigonal; 3 m. Crystal Habit is typically three sided stubby almost tabular crystals. The terminations can be either a simple to complex trigonal pyramid or a flat basal face. The prism faces are striated lengthwise. In cross section, all tourmalines will appear predominantly triangular in shape with some crystals showing a hexagon. Doubly terminated crystals are hemimorphic, meaning that the two ends of the crystal are not exactly alike. Hardness of Uvite crystal is 7.5; Specific Gravity is 3.0+ (average); Cleavage is absent although there is basal parting; Fracture is uneven to conchoidal; Streak is white.
Other Characteristics: Strongly pleochroic and piezoelectric.
In addi |
| Company: |
Great Wall Mineral
|
| Contact: |
Mr. lenny sun |
| Address: |
2208, 4th Building, Renhe Jiayuan£¬28 East Huai'an Road |
| Postcode: |
050000 |
| Tel: |
86-311-86128822 |
| Fax: |
86-311-86126662 |
| E-mail: |
|
|
|
|
Home
