Boogardie quarry is a quarry on Boogardie Station, 35 km from Mount Magnet in the Mid West region of Western Australia, that is a location of a rare deposit of orbicular granite.
Location
The station is the location of a quarry with the incidence of orbicular granite.* Bevan, J, 2004, Archaean orbicular granitoids from Boogardie, near Mt Magnet, in Western Australia: Dynamic Earth: Past, Present and Future: Geological Society of Australia, Abstracts 73, 17th Australian Geological Convention, Hobart, p. 252. Bevan, JC, and Bevan AWR, 2009, Nature and origin of the orbicular granodiorite from Boogardie Station, Western Australia: an ornamental stone of monumental proportions: The Australian Gemmologist (2009), v. 23, p. 373–432. Fetherston, JM, 2010, Dimension stone in Western Australia, Volume 2, Dimension stones of the southern, central western, and northern regions: Geological Survey of Western Australia, Mineral Resources Bulletin 24, p. 35–43.
The quarry and its contents were a feature item in The Australian geologist newsletter, as "National Rock Garden — Boogardie orbicular granite GSA Rock of the Month — March 2013". - issue 166, page 15–16, Mike Featherstone author
The granite sphere at the Mines Department core library in Carlisle was donated by Mark Creasy in 2004.floating stones website explaining orbicular graniteGSWA Stepping Stones, Two self-guided geology trails in the city item 5.Granite sphere, Forrest Place large closely spaced, light to dark grey, egg-shaped orbicules of hornblende and plagioclase crystals les in a granitic groundmass. Large veins of quartz and feldspar cut across the rock... dated at 2685 million years
Another sphere containing the granite is located in Forrest Place in Perth.
Notes