Hi all
This is a specimen of two carbonate minerals, calcite (the orange hemisphere which is 2cm across) and aragonite. They occur in cavities in basalt at the Bundoora Quarry, Victoria, Australia.
nother basalt mineral specimen...
Moderators: Chris S., Pau, Beatsy, rjlittlefield, ChrisR
nother basalt mineral specimen...
Last edited by crocoite on Sat Feb 17, 2007 7:10 pm, edited 1 time in total.
Very nice shot Steve. Do you go and collect these specimens yourself? I just read something on the two groups and I think I will have to go retake my chemistry schooling (36 years ago)
(you made me go and look for more info
) http://mineral.galleries.com/minerals/c ... alcite.htm. We have Rhodochrosite beads at the store..did not know they were in the calcite group 



Take Nothing but Pictures--Leave Nothing but Footprints.
Doug Breda
Doug Breda
Hi Dougbeetleman wrote:Very nice shot Steve. Do you go and collect these specimens yourself?
I have collected at Bundoora (but this specimen came from friends of mine - they have asked me to help dispose of their collection, and I came back from their place in Echuca, Victoria with around 15,000 specimens!). I was originally responsible for opening the site (now closed) to collectors when I lived in Melbourne. Here's a shot of the back of my car with the back seat down too (a Toyota Kluger 4WD)...

crocoite said:
Looks like the bosses jeep after he comes back from one of his buying trips for the store.
I bet I know where most of the good ones are getting disposed too......they have asked me to help dispose of their collection

Looks like the bosses jeep after he comes back from one of his buying trips for the store.
Take Nothing but Pictures--Leave Nothing but Footprints.
Doug Breda
Doug Breda
Heh, heh. Seriously, it's been given to me as a sort of inheritance. I've been told to take what I want. The previous owners were like grandparents to our kids through the 80s and early 90s, but unfortunately, age and poor health has taken its toll and they are moving into a smaller house.beetleman wrote:I bet I know where most of the good ones are getting disposed too......![]()
Interestingly, what you see in the photo is about 15% of the total collection!