Locality type: | Property |
Classification |
---|
|
Species: | Muscovite |
Formula: | KAl2(AlSi3O10)(OH)2 |
Age information |
---|
|
Maximum recorded age: | 1782.5 ± 3.7 Ma |
Minimum recorded age: | ~1510 Ma |
Sample ages: | | Recorded age | Geologic Time | Sample | Dating method |
---|
1 | 1782.5 ± 3.7 to ~1510 Ma | Proterozoic | Average of analyses | ID-TIMS for zircon U-Pb |
---|
|
Chemical Analyses: |
---|
|
Oxide wt%: | | 1 |
---|
SiO2 | 44.96 % |
---|
TiO2 | 0.04 % |
---|
Al2O3 | 37.39 % |
---|
Cr2O3 | 0.01 % |
---|
MgO | 0.02 % |
---|
CaO | 0.01 % |
---|
BaO | 0.01 % |
---|
MnO | 0.02 % |
---|
FeO | 0.04 % |
---|
Na2O | 0.81 % |
---|
K2O | 10.68 % |
---|
F | 0.00 % |
---|
Cl | 0.02 % |
---|
H2O | 4.46 % |
---|
O=F,Cl | 0 % |
---|
Total: | 98.47 % |
---|
|
Sample references: | |
Confirmation |
---|
|
Validity: | Believed Valid |
Data |
---|
|
Mineral Data: | Click here to view Muscovite data |
Locality Data: | Click here to view Beluga sapphire property, Kimmirut (Lake Harbour), Baffin Island, Qikiqtaaluk Region, Nunavut, Canada |
Data Identifiers |
---|
|
Mindat Occurrence Record ID: | 552686 |
Long-form Identifier: | 1:3:552686:4 |
GUID (UUID V4): | cec46273-0ebf-4ce0-81d5-dca108213b98 |
References |
---|
|
|
Reference Search (possible matching items) |
---|
| | Journal (article/letter/editorial) | 1800060 METACARBONATE-HOSTED SPINEL ON BAFFIN ISLAND, NUNAVUT, CANADA: INSIGHTS INTO THE ORIGIN OF GEM SPINEL...Columbia, Canada V6T 1Z4 ABSTRACT Samples from 14 spinel occurrences in the Lake Harbour Group (LHG)...(LHG), Baffin Island, Nunavut, Canada, were studied using a combination of petrography, whole rock geochemistry...not of gem quality. Two spinel occurrences near Kimmirut contain vivid blue, cobalt-enriched (0.03–0.07...Other significant gemstone occurrences in the LHG (sapphire and lapis lazuli) are interpreted to have similar | | | Journal (issue) | for the European Market 48 Colored Gemstones from Canada – An Update InColor Color Referencing ColorCodexTM...Jewelry Industry 56 Two Decades of GIT's Ruby and Sapphire Color Standards Color Varieties of Gems – Where...Vice Presidents Henry Ho, Thailand Warren Boyd, Canada Treasurer Duncan Mclauchlan, UK Secretaries Stephan...continuously exploited and mechanized mines, such as the sapphire mines in Montana, sunstone mines in Oregon, tourmaline...borderline cases such as ruby vs pink sapphire, padparadscha vs fancy sapphire and the above-mentioned emerald |
|