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Emilite
Emilite

Bournonite
Bournonite



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Emilite
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Bournonite

Emilite and Bournonite

1 Physical
1.1 Mohs Hardness
3.5-4
3
1.2 Luster
Metallic
Metallic
1.3 Cleavage
{0kl} Imperfect
[010] Imperfect
1.4 Fracture
Brittle Uneven Very brittle fracture producing uneven fragments.
Sub Conchoidal Fractures developed in brittle materials characterized by semi-curving surfaces.
1.5 Streak
Grayish black
Steel-gray to iron-black
1.6 Bulk Density
Osmium
5.91
Rank: N/A (Overall)
2.52
Rank: 100 (Overall)
Kurilite
1.7 Tenacity
Not Available
Not Available
2 Chemical
2.1 Formula
2.1.1 Chemical Formula
Cu2.68Pb2.68Bi5.32S12
PbCuSbS3
2.1.2 Empirical Formula
Cu2.63Pb2.7Bi5.34S12.1
PbCuSbS3
2.2 Crystal Properties
2.2.1 Crystal System
Orthorhombic Pyramidal H-M Symbol
Orthorhombic
2.2.2 Space group
Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: P mc21
Orthorhombic
2.2.3 Crystal Habit
Not Available
Crystals short prismatic to tabular, typically striated; commonly as subparallel aggregates.
2.2.4 Crystal Class
Not Available
Pyramidal (mm2)
2.2.5 Twinning
Not Available
On {110}, commonly forming cross or cogwheel aggregates
2.3 Molecular Weight
Proudite
2,230.52
Rank: N/A (Overall)
488.69
Rank: 100 (Overall)
Diamond
3 Atomic
3.1 Axial Ratios
a:b:c =0.0895:1:0.2578
a:b:c =0.9379:1:0.8965
3.2 Fermion Index
Maldonite
0.05
Rank: 33 (Overall)
0.09
Rank: 29 (Overall)
Algodonite
3.3 Boson Index
Algodonite
0.95
Rank: N/A (Overall)
0.91
Rank: 100 (Overall)
Urea
3.4 Cell Dimensions
3.4.1 a
Mesolite
4.03
Rank: N/A (Overall)
8.16
Rank: 100 (Overall)
Graphite
3.4.2 b
Liveingite
44.99
Rank: 10 (Overall)
8.70
Rank: 100 (Overall)
Tantalcarbide
3.4.3 c
Taranakite
11.60
Rank: N/A (Overall)
7.80
Rank: 100 (Overall)
Tiettaite
3.4.4 alpha
Nefedovite
Not Available
Rank: N/A (Overall)
Not Available
Rank: 100 (Overall)
Schneiderhohnite
3.4.5 beta
Catapleiite
Not Available
Rank: N/A (Overall)
Not Available
Rank: 100 (Overall)
Harmotome
3.4.6 gamma
Rhonite
Not Available
Rank: N/A (Overall)
Not Available
Rank: 100 (Overall)
Hemihedrite
4 Optical
4.1 Photoelectric
Natronambulite
Not Available
Rank: N/A (Overall)
Not Available
Rank: 100 (Overall)
Hartite
4.2 Radioactivity
No Common Minerals Minerals has it !
No Common Minerals Minerals has it !
4.2.1 GRapi
Melanocerite Ce
0.00
Rank: N/A (Overall)
0.00
Rank: 100 (Overall)
Abelsonite
4.3 By Intensity
Not Available
2.74(1), 1.768(0.5), 2.685(0.45
4.4 Specific Gravity
Osmium
7.05
Rank: N/A (Overall)
2.93
Rank: 100 (Overall)
Kurilite
4.5 Diaphaneity
Opaque
Opaque
4.6 Luminescence
Not Available
Non-fluorescent.
4.7 Birefringence
0
0
4.8 Pleochroism
Not Available
Very weak
5 Classification
5.1 Category
Not Available
Sulfosalt mineral
5.2 IMA Status
Approved IMA 2002 (Dana # Added)
Valid Species (Pre-IMA) 1805
5.3 Dana Class
03.06.22.01
03.04.03.02
5.4 Strunz Class
02.HB.05a
02.GA.50
6 Facts
6.1 Origin
Metamorphosed scheelite deposit. Member of the bismuthinite-krupkaite-aikinite solid-solution series.
Moderate temperature hydrothermal veins.
6.2 Locality
Felbertal scheelite deposit, Austria. Link to  MinDat.org Location Data.
Wheal Boys, St Endellion, Cornwall, England Link to  MinDat.org Location Data.
6.3 Name Origin
Presumabley named for Emil Makovicky of the University of Copenhagen.
Named after the French mineralogist, J. L. de Bournon (1751-1825).
6.4 Color
White, Tin white.
Black, Not Available, Black, Steel gray., Not Available
6.5 Name Synonym
IMA2001-015
Endellionite
6.6 Uses
Not Available
Not Available

Emilite and Bournonite Information

Minerals are solid substances, occurring naturally. Minerals are not organic compounds as their origins are inorganic. Interestingly, the process of formation of minerals do result from organic processes. The way in which the minerals are formed affects the Emilite and Bournonite. The appearance of a mineral is greatly influenced during its formation. Emilite and Bournonite information will help you understand how these minerals are found in nature. Here you can know all about it. Emilite mineral belongs to Not Available and Bournonite belongs to Sulfosalt mineral. It is also important to know the IMA status of a mineral, for the first mineral IMA status is Approved IMA 2002 (Dana # Added) and for second mineral it is Valid Species (Pre-IMA) 1805. Another important aspect is the minerals strength or hardness, Emilite has Mohs Hardness between 3.5-4 while Bournonite has a hardness of 3.

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