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Leeds and Grenville Co., Ontario, Canada

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Detailed Mineral List:

Albite
Formula:	NaAlSi₃O₈
Locality:	St. Lawrence deposit, Seeley’s Bay, Leeds and Grenville Co., Ontario, Canada







'Albite-Anorthite Series'
Locality:	St. Lawrence deposit, Seeley’s Bay, Leeds and Grenville Co., Ontario, Canada








'Amphibole Group'
Formula:	AX₂Z₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
Locality:	St. Lawrence deposit, Seeley’s Bay, Leeds and Grenville Co., Ontario, Canada







Anhydrite
Formula:	CaSO₄
Locality:	Portland-Otty Lake-Highway 15 road cut, Portland, Leeds and Grenville Co., Ontario, Canada







'Apatite'
Locality:	St. Lawrence deposit, Seeley’s Bay, Leeds and Grenville Co., Ontario, Canada








'Asbestos'
Locality:	Portland-Otty Lake-Highway 15 road cut, Portland, Leeds and Grenville Co., Ontario, Canada








Baryte
Formula:	BaSO₄
Locality:	Morton, Rideau Lakes Township, Leeds and Grenville Co., Ontario, Canada







Biotite
Locality:	Portland-Otty Lake-Highway 15 road cut, Portland, Leeds and Grenville Co., Ontario, Canada








Cacoxenite
Formula:	Fe³⁺₂₄Al(PO₄)₁₇O₆(OH)₁₂ · 17H₂O
Locality:	Billings pyrite mine, Elisabethtown Township, Leeds and Grenville Co., Ontario, Canada







Calcite
Formula:	CaCO₃
Localities:	Steele Mine, Lyndhurst, Rear of Leeds and Lansdowne Township, Leeds and Grenville Co., Ontario, Canada St. Lawrence deposit, Seeley’s Bay, Leeds and Grenville Co., Ontario, Canada Cranberry Lake, Township of Merrickville-Wolford, Leeds and Grenville Co., Ontario, Canada Portland-Otty Lake-Highway 15 road cut, Portland, Leeds and Grenville Co., Ontario, Canada






Photo: © A. Steinburg. Calcite from Morton, Rideau Lakes Township, Leeds and Grenville Co., Ontario, Canada
Chalcopyrite
Formula:	CuFeS₂
Localities:	Morton, Rideau Lakes Township, Leeds and Grenville Co., Ontario, Canada Highway 15 roadcut, Portland, Leeds and Grenville Co., Ontario, Canada St. Lawrence deposit, Seeley’s Bay, Leeds and Grenville Co., Ontario, Canada






Photo: © A. Steinburg. Chalcopyrite from Morton, Rideau Lakes Township, Leeds and Grenville Co., Ontario, Canada
Corundum
Formula:	Al₂O₃
Locality:	Portland-Otty Lake-Highway 15 road cut, Portland, Leeds and Grenville Co., Ontario, Canada






Photo: © 2.007. Corundum from Portland-Otty Lake-Highway 15 road cut, Portland, Leeds and Grenville Co., Ontario, Canada
Diopside
Formula:	CaMgSi₂O₆
Localities:	Highway 15 roadcut, Portland, Leeds and Grenville Co., Ontario, Canada Portland-Otty Lake-Highway 15 road cut, Portland, Leeds and Grenville Co., Ontario, Canada St. Lawrence deposit, Seeley’s Bay, Leeds and Grenville Co., Ontario, Canada Cranberry Lake, Township of Merrickville-Wolford, Leeds and Grenville Co., Ontario, Canada






Photo: © A. Steinburg. Diopside from Highway 15 roadcut, Portland, Leeds and Grenville Co., Ontario, Canada
'Feldspar Group'
Locality:	Highway 15 roadcut, Portland, Leeds and Grenville Co., Ontario, Canada








'Garnet'
Formula:	X₃Z₂(SiO₄)₃
Locality:	St. Lawrence deposit, Seeley’s Bay, Leeds and Grenville Co., Ontario, Canada







Graphite
Formula:	C
Localities:	Highway 15 roadcut, Portland, Leeds and Grenville Co., Ontario, Canada St. Lawrence deposit, Seeley’s Bay, Leeds and Grenville Co., Ontario, Canada







Hedenbergite
Formula:	CaFe²⁺Si₂O₆
Locality:	St. Lawrence deposit, Seeley’s Bay, Leeds and Grenville Co., Ontario, Canada







Iron ?
Formula:	Fe
Locality:	Billings pyrite mine, Elisabethtown Township, Leeds and Grenville Co., Ontario, Canada - erroneously reported







Microcline
Formula:	KAlSi₃O₈
Locality:	St. Lawrence deposit, Seeley’s Bay, Leeds and Grenville Co., Ontario, Canada







Muscovite var: Sericite
Locality:	St. Lawrence deposit, Seeley’s Bay, Leeds and Grenville Co., Ontario, Canada








Phlogopite
Formula:	KMg₃(AlSi₃O₁₀)(OH,F)₂
Localities:	Portland-Otty Lake-Highway 15 road cut, Portland, Leeds and Grenville Co., Ontario, Canada St. Lawrence deposit, Seeley’s Bay, Leeds and Grenville Co., Ontario, Canada Cranberry Lake, Township of Merrickville-Wolford, Leeds and Grenville Co., Ontario, Canada







Prehnite
Formula:	Ca₂Al₂Si₃O₁₂(OH)
Locality:	St. Lawrence deposit, Seeley’s Bay, Leeds and Grenville Co., Ontario, Canada







Pyrite
Formula:	FeS₂
Localities:	Billings pyrite mine, Elisabethtown Township, Leeds and Grenville Co., Ontario, Canada Portland-Otty Lake-Highway 15 road cut, Portland, Leeds and Grenville Co., Ontario, Canada St. Lawrence deposit, Seeley’s Bay, Leeds and Grenville Co., Ontario, Canada







Pyrrhotite
Formula:	Fe_1-xS (x = 0 to 0.17)
Localities:	Billings pyrite mine, Elisabethtown Township, Leeds and Grenville Co., Ontario, Canada St. Lawrence deposit, Seeley’s Bay, Leeds and Grenville Co., Ontario, Canada







Quartz
Formula:	SiO₂
Localities:	Steele Mine, Lyndhurst, Rear of Leeds and Lansdowne Township, Leeds and Grenville Co., Ontario, Canada St. Lawrence deposit, Seeley’s Bay, Leeds and Grenville Co., Ontario, Canada






Photo: © A. Steinburg. Quartz from Steele Mine, Lyndhurst, Rear of Leeds and Lansdowne Township, Leeds and Grenville Co., Ontario, Canada
Quartz var: Rock Crystal
Locality:	Steele Mine, Lyndhurst, Rear of Leeds and Lansdowne Township, Leeds and Grenville Co., Ontario, Canada








'Scapolite'
Locality:	St. Lawrence deposit, Seeley’s Bay, Leeds and Grenville Co., Ontario, Canada








Sphalerite
Formula:	ZnS
Locality:	St. Lawrence deposit, Seeley’s Bay, Leeds and Grenville Co., Ontario, Canada







Titanite
Formula:	CaTi(SiO₄)O
Locality:	St. Lawrence deposit, Seeley’s Bay, Leeds and Grenville Co., Ontario, Canada







'Tourmaline var: Rubellite'
Locality:	Highway 15 roadcut, Portland, Leeds and Grenville Co., Ontario, Canada








Vesuvianite
Formula:	(Ca,Na,☐)₁₉(Al,Mg,Fe³⁺)₁₃(☐,B,Al,Fe³⁺)₅(Si₂O₇)₄(SiO₄)₁₀(OH,F,O)₁₀
Locality:	St. Lawrence deposit, Seeley’s Bay, Leeds and Grenville Co., Ontario, Canada







Wollastonite
Formula:	CaSiO₃
Locality:	St. Lawrence deposit, Seeley’s Bay, Leeds and Grenville Co., Ontario, Canada






Photo: © A. Steinburg. Wollastonite from Highway 15 roadcut, Portland, Leeds and Grenville Co., Ontario, Canada
Zircon
Formula:	ZrSiO₄
Localities:	Highway 15 roadcut, Portland, Leeds and Grenville Co., Ontario, Canada St. Lawrence deposit, Seeley’s Bay, Leeds and Grenville Co., Ontario, Canada Portland-Otty Lake-Highway 15 road cut, Portland, Leeds and Grenville Co., Ontario, Canada






Photo: © Rights reserved. Zircon from Portland-Otty Lake-Highway 15 road cut, Portland, Leeds and Grenville Co., Ontario, Canada

33 entries listed. 22 valid minerals.

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Copyright © Jolyon Ralph and Ida Chau 1993-2012. Jobs in Ontario, Canada Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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