Table of Contents
What are the properties of tremolite?
| Tremolite | |
|---|---|
| Optical properties | Biaxial (-) |
| Refractive index | nα = 1.599 – 1.612 nβ = 1.613 – 1.626 nγ = 1.625 – 1.637 |
| Birefringence | δ = 0.026 |
| 2V angle | Measured: 86° to 88° |
Does tremolite have cleavage?
Tremolite is a silicate mineral and member of the amphibole group….Tremolite Physical Properties.
| Crystal habit | Elongated prismatic, or flattened crystals; also as fibrous, granular or columnar aggregates |
|---|---|
| Luster | Vitreous, Silky |
| Cleavage | Perfect on {110} |
| Diaphaneity | Transparent, Translucent |
| Mohs Hardness | 5 – 6 |
What are the physical properties of actinolite?
Physical Properties of Actinolite
- Cleavage: {110} Perfect, {110} Perfect.
- Color: Green, Green black, Gray green, Black.
- Density: 2.98 – 3.1, Average = 3.04.
- Diaphaneity: Translucent to transparent.
- Fracture: Splintery – Thin, elongated fractures produced by intersecting good cleavages or partings (e.g. hornblende).
What is tremolite asbestos?
Tremolite Asbestos Tremolite is no longer mined and is responsible for many cases of asbestos-related cancer and asbestos diseases. Tremolite ranges in color from a milky white to a dark green and is found in other minerals such as talc and vermiculite.
Is tremolite a pleochroic?
Color – Tremolite is clear to light green, may be slightly pleochroic. The color and pleochroism are more pronounced with greater Fe content. Cleavage – Tremolite shows typcial amphibole cleavage. One cleavage in longitudinal sections, and two creating a 60o-120o cleavage angle when viewed in end section.
What is the hardness of actinolite?
5–6
| Actinolite | |
|---|---|
| Cleavage | perfect along {110}. |
| Fracture | uneven |
| Mohs scale hardness | 5–6 |
| Luster | vitreous to dull |
Where do you find tremolite?
Where is Tremolite Found? Outside of the United States, tremolite was primarily mined in South Africa and India. In South Africa, it was extensively mined in the beginning of the 20th century, but it became secondary to the mining of amosite and crocidolite.
Is tremolite a Pleochroic?
What is AIB used for?
Asbestos Insulating Board was commonly used as fireproofing material but it had many other uses such as: partition walls. fireproofing panels in fire doors. lift shaft linings.
What are the properties of Hypersthene?
Hypersthene is typically brown, green or grey with a vitreous to pearly luster. Some hypersthene has been known to display a coppery or red metallic sheen….Hypersthene Geological Properties.
| Mineral Information | Magnesium and iron silicate |
|---|---|
| Specific Gravity | 3.45 to 3.55 |
| Refractive Index | 1.673 to 1.731 |
What is the composition of Hypersthene?
Hypersthene is a common rock-forming inosilicate mineral belonging to the group of orthorhombic pyroxenes. Its chemical formula is (Mg,Fe)SiO 3. It is found in igneous and some metamorphic rocks as well as in stony and iron meteorites.
What is the texture of actinolite?
| Actinolite | |
|---|---|
| Luster | vitreous to dull |
| Streak | white |
| Diaphaneity | translucent to transparent |
| Specific gravity | 3.00 (+0.10, -0.05) |
Is actinolite a fluorescent?
Luminescence, fluorescence and phosphorescence of minerals.
Which properties made asbestos a useful material?
Several properties make asbestos brilliant for building materials:
- Strong.
- Cheap.
- Sound Insulation.
- Heat Insulation.
- Fire Protection.
- Resistant to Chemicals.
- Resistant to Water.
- Resistant to Electricity.
Is Hypersthene a crystal?
Hypersthene, also known as Ferrosilite or Spectrolite, is an iron magnesium silicate crystal and member of the Pyroxene group of minerals. Its crystal system is orthorhombic and can be found in the form of masses, grains, flakes, and small prismatic crystals.