Amber

NAME:

CHEMICAL FORMULA: (Si₂O₂)   

lkjsd (Si₂O₂)

SiO₂

SiO₂

 

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lkjlkjlkjllkjlakja

 

lkjlkjlkjllkjlakja lkjlkjlkjllkjlakja

 

SiO₂

 

 

 

 

 

SYMMETRY: SiO2 kjhkasdhjhkjasnkjlaksdnk lkjl^lklklknlknlkkjlklkjlkjl

 

PHYSICAL PROPERTIES

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Color:
Transparency (Diaphaneity) :
Luster:
Streak:
Cleavage:
Fracture:
Hardness (Mohs):
Hardness (Vickers):
Density [g/cm3]:
Tenacity:

Luminescence:
Pyroelectricity:
Piezoelectricity:
Magnetism:
Radioactivity:

CRYSTALLOGRAPHY

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Crystal System:
Crystal Class (Point Group):
Space Group:

Cell Parameters [Å]:
Axial Ratio:
Unit Cell Volume [Å3]:
Formula Units per Unit Cell (Z):
Crystal Structure:
X-ray Diffraction:

Morphology:
Typical Crystal Forms:
Twinning:

CHEMICAL PROPERTIES

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Chemical Formula (CNMNC approved):
Chemical Composition:
Polymorphism:
Mineral Group:
Solid solution Series:

OPTICAL PROPERTIES (Polished sections (blocks) – reflected light)

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Color:
Reflectance (R) [%]:(air, nm)
Anisotropy:
Bireflectance:
Pleochroism:
Internal Reflections:
Other:

OPTICAL PROPERTIES (Thin sections – transmitted light)

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Optical Class:
Refractive Indice (isotropic):
n:
Refractive Indices - (uniaxial):
nω (no):
nε (ne):
Refractive Indices – (biaxial):
nα (np):
nβ (nm):
nγ (ng):
Indicatrix Orientation:
2V [deg]: (average)
Dispersion (2V):
Birefringence (δ max.):
Interference Color (sample thickness ~ 30µm (0.03mm)):
Pleochroism:
X-
Y-
Z-
Relief:
Other:

OTHER SPECIFIC DIAGNOSTIC PROPERTIES

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OCCURRENCE AND DISTRBUTION

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Occurence:

Mineral paragenesis and associations:

Famous Localities:

HEALTH RISKS

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USES

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GEMOLOGY

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HISTORICAL DATA

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Year of Discovery:

Name Origin:

SYNONYMS

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CLASSIFICATION

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IMA Status:

Strunz 9th ed.:

Kostov:

 

REFERENCES

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(IMA/CNMNC, (2009),
Nickel-Nichols,
Materials Data, Inc.,):