Ontario Mineral Inventory

GeologyOntario has moved. You will be redirected to the new site in 10 seconds. If you are not immediately redirected please follow the below link to the new GeologyOntario platform. For assistance please contact us.

Ontario Geological Survey
Permanent Link to this Record: MDI41N15NW00082

Record: MDI41N15NW00082

General

Mineral Record Identification
Record Name(s)	Clement Diamond Discovery - 1991
Related Record Type	Simple
Related Record(s)
Record Status	Discretionary Occurrence
Date Created	2000-Dec-15
Date Last Modified	2022-Sep-16
Created By
Revised By

Commodities

Primary Commodities: Diamond

Location

Township or Area: Rabazo

Latitude: 47° 55' 54.07" Longitude: -84° 49' 1.33"

UTM Zone: 16 Easting: 663050.17 Northing: 5311013.66 UTM Datum: NAD83

Resident Geologist District: Sault Ste. Marie

NTS Grid: 41N15NW

Point Location Description: Point bar in Dead River (location approximate only)

Location Method: Field Visit with GPS

Access Description: The site is accessible via Highway 17 south from the town of Wawa. Drive south from the junction of highway 101 and highway 17 for approximately 5 km to the Michipicoten River Village Road. Park on the shoulder of the road and follow the Voyageur Trail to the river. Alternatively, the Dead River can be accessed from the picnic site by the Michipicoten River Bridge.

Exploration History

1988: Alluvial Gold Mines Inc. - airborne geophysical survey. 1991-95: Mickey Clement - prospecting, sampling, ground geophysical survey, KIM analysis. 1992-93: M Hauseux and S. Surmacz - prospecting, sampling, KIM analysis. 1995: Currie Rose Resources Inc. - KIM sampling.

Assessment Work on File

Assessment Work on File
Office File Number	Online Assessment File Identifier	Online Assessment File Directory
WP Lendrum.27	41N15NW0048	41N15NW0048
WP Rabazo.27	41N15NW0070	41N15NW0070
WP Lendrum.17	41N15NW0002	41N15NW0002
WP RABAZO.11	41N15NW0047	41N15NW0047

Geology

Province: Superior

Subprovince: Wawa

Terrane: Wawa-Abitibi

Belt: Michipicoten

Geological Age: Archean

Lithology

Lithology Data
Rock Type	Rank	Composition	Texture	Relationship
Gravel	1		Gravel	Host
Ultramafic Lamprophyre	2	Ultramafic Lamprophyre		Near
Mafic massive flow	3		Massive	Near
Schist-Unsubdivided	4	Chlorite		Near

Lithology Comments

Dec 07, 2005 (A Wilson) - The diamonds were recovered from a point bar or other gravel deposits in the vicinity of the Dead River. In the immediate vicinity of the discovery there are no outcrops, the area is underlain by the Pleistocene deposits of the Michipicoten River. The rocks that outcrop closest to the occurrence consist of massive to schistose mafic metavolcanic rocks. An unusual ultramafic lamprophyre dike, the Nicholson ultramafic dike, is located approximately 1.2 km north north west of the site.

Mineralization

Mineralization and Alteration
Rank	Mineral Name	Class	Economic Mineral Type
1	Diamond	Economic	Ore
1	Garnet	Economic	Gangue
2	Chromite	Economic	Gangue
3	Diopside	Economic	Gangue

Mineralization Comments

Dec 07, 2005 (A Wilson) - Two diamonds were recovered from Pleistocene gravels of the Michipicoten River. They weighed 1.05 and 1.13 carats. One stone was identified as an octahedral twin diamond. Both diamonds are cloudy and contain inclusions of what is thought to be graphite. Alluvial sampling in the vicinity of the discovery recovered 12 chromite grains and 3 chrome diopside grains. A single G10 garnet was recovered in the vicinty of Driftwood Beach.

Mineral Record Details

References

Map - Geological series, Precambrian geology, Lendrum Township and parts of Gros Cap I.R. 49, Algoma District

Publication Number: P2681 Scale: 1:15,840 Date: 1983

Author: Massey N.W.D., Jennings E.A.