Geology
Notable Minerals in Lake Clear Region
This information was provided by John Almstedt.
Calcite and Apatite
Calcite and Apatite
Red Apatite and Orange Calcite from Turner Island
Records of mining in the Lake Clear region go back to the 1870s when it was reported that between 1879-82, 200 tons of apatite had been mined from Turner's island. At that time apatite was regarded as an important source of phosphate fertilizer. In 1888, an 80 lb sphene twin had also been recorded Production was from open cuts, trenches and pits into calcite veins at the northwest end of the island.
One trench was re-opened in 1943 during investigations for rare earth elements. During 1977, the National Museum of Canada collected mineral specimens.
Over the years a small amount of mineral collecting has occurred on the island. This has resulted in a few newer small trenches and pits. Most mineral collecting has been in the vicinity of the old workings.
A Turner Island 1992 geology report recommended that further study be done on the calcite veins. Calcite is a limestone derived from the Ordovician seas that covered the region millions of years ago. Embedded in the calcite are a variety of minerals referred to as silicates (composed of oxygen and silicon) the most prominent ones on Turner's island being apatite, sphene and zircon.
In 1888, the US Geological Survey (page 31) described that the Turner island vein could be seen on the land of Xavier Plaunt, on the south side of Clear Lake.
One trench was re-opened in 1943 during investigations for rare earth elements. During 1977, the National Museum of Canada collected mineral specimens.
Over the years a small amount of mineral collecting has occurred on the island. This has resulted in a few newer small trenches and pits. Most mineral collecting has been in the vicinity of the old workings.
A Turner Island 1992 geology report recommended that further study be done on the calcite veins. Calcite is a limestone derived from the Ordovician seas that covered the region millions of years ago. Embedded in the calcite are a variety of minerals referred to as silicates (composed of oxygen and silicon) the most prominent ones on Turner's island being apatite, sphene and zircon.
In 1888, the US Geological Survey (page 31) described that the Turner island vein could be seen on the land of Xavier Plaunt, on the south side of Clear Lake.
Mineral Collectors at Lost Mine 2006-8
Three other mines in the area are the Smart, Lost and Meany mines which are in the vicinity of lot 31, concession 10, or near the east end of Witkie Rd.
Current conditions of the Smart mine are described in the 1993, Mine Claim Report . The Lost mine seems to have become a popular destination site for mineral hobbists.
Current conditions of the Smart mine are described in the 1993, Mine Claim Report . The Lost mine seems to have become a popular destination site for mineral hobbists.
Geological History of the Bonnechere River Watershed
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Please see p. 28-30
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