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Davis Lake corundum occurrence (Tett occurrence), Lutterworth Township, Haliburton County, Ontario, Canadai
Regional Level Types
Davis Lake corundum occurrence (Tett occurrence)Occurrence
Lutterworth TownshipTownship
Haliburton CountyCounty
OntarioProvince
CanadaCountry

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Key
Latitude & Longitude (WGS84):
44° 48' 7'' North , 78° 44' 4'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
Haliburton Village1,149 (2019)32.4km


Ref.: Geological Survey of Canada Miscellaneous Report 39.
In syenite pegmatite.
"The corundum-bearing pegmatite outcrops on a low knoll which is traversed by the road leading from Davis Lake to Norland, and in outcrops to the north and south of this road."

On the road on the boundary between concessions III and IV, in lot 12,
Lutterworth township, and north and south of it, corundum syenite-pegmatite
occurs as flat outcrops over an area 4 chains long from north and south and 2
chains wide. The corundum is present as deep-brown crystals ranging from
a quarter of an inch to one inch in diameter, the largest being 4 inches in length.
The amount of corundum present varies; some areas of the outcrop l foot in
diameter contain 10 per cent.; in the remainder of the outcrop the corundum
content is low or negligible. The average content may be 3 percent.

South of the road the corundum syenite-pegmatite grades into a graphic
granite-pegmatite. To the east and west the rocks exposed are granite or
hybrid gneisses with a gneissic structure trending north and south and dipping
30* to 45*E. To the north and northeast a few corundum crystals were found
in pegmatite bands in the gneiss, the last outcrop in which the crystals occur
was 12 chains from the road. One small outcrop at the edge of a swamp con
tained 25 per cent, corundum across 3 feet in a pegmatite. The corundum
syenite-pegmatite may be a sill trending north and south, not more than 2
chains in width.

Owing to the erratic distribution of the corundum and the small size of the
corundum-bearing pegmatite, the deposit is not of any economic importance.
This occurrence was discovered by B. Tett in 1905.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


6 valid minerals.

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Reference: Ref.: Geological Survey of Canada Miscellaneous Report 39.
Albite var: Peristerite
Formula: Na(AlSi3O8)
Reference: Sabina A.P. (1986) GSC, Rocks and Minerals for the Collector, Miscellaneous report 39, p.66.
Corundum
Formula: Al2O3
Reference: Ref.: Geological Survey of Canada Miscellaneous Report 39.
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Ref.: Geological Survey of Canada Miscellaneous Report 39.
Pyrite
Formula: FeS2
Reference: Ref.: Geological Survey of Canada Miscellaneous Report 39.
Rutile
Formula: TiO2
Reference: Ref.: Geological Survey of Canada Miscellaneous Report 39.
Tremolite
Formula: ☐{Ca2}{Mg5}(Si8O22)(OH)2
Reference: http://www.geologyontario.mndm.gov.on.ca/mndmfiles/mdi/data/records/MDI31D15SE00002.html

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Corundum4.CB.05Al2O3
Magnetite4.BB.05Fe2+Fe3+2O4
Rutile4.DB.05TiO2
Group 9 - Silicates
Albite9.FA.35Na(AlSi3O8)
var: Peristerite9.FA.35Na(AlSi3O8)
Tremolite9.DE.10☐{Ca2}{Mg5}(Si8O22)(OH)2

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Corundum4.3.1.1Al2O3
AX2
Rutile4.4.1.1TiO2
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 66 - INOSILICATES Double-Width,Unbranched Chains,(W=2)
Amphiboles - Mg-Fe-Mn-Li subgroup
Tremolite66.1.3a.1☐{Ca2}{Mg5}(Si8O22)(OH)2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Unclassified Minerals, Mixtures, etc.
var: Peristerite-Na(AlSi3O8)

List of minerals for each chemical element

HHydrogen
H Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
OOxygen
O CorundumAl2O3
O AlbiteNa(AlSi3O8)
O RutileTiO2
O MagnetiteFe2+Fe23+O4
O Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
O Albite (var: Peristerite)Na(AlSi3O8)
NaSodium
Na AlbiteNa(AlSi3O8)
Na Albite (var: Peristerite)Na(AlSi3O8)
MgMagnesium
Mg Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
AlAluminium
Al CorundumAl2O3
Al AlbiteNa(AlSi3O8)
Al Albite (var: Peristerite)Na(AlSi3O8)
SiSilicon
Si AlbiteNa(AlSi3O8)
Si Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
Si Albite (var: Peristerite)Na(AlSi3O8)
SSulfur
S PyriteFeS2
CaCalcium
Ca Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
TiTitanium
Ti RutileTiO2
FeIron
Fe PyriteFeS2
Fe MagnetiteFe2+Fe23+O4

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Satterly J. (1943) Mineral Occurrences in the Haliburton Area, Ontario Department of Mines, Annual Report ARV52, Pt.2, p.22.
Sabina A.P. (1986) GSC, Rocks and Minerals for the Collector, Miscellaneous report 39, p.66.

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