Great Canadian Prospecting Co

07/22/2026

Join us at Rockhound Gemboree 2026! We will be outside of the arena at:

Bancroft Curling Club
63 Newkirk Blvd

Thursday, July 30 - Saturday August 1
11-4pm

Sunday, August 2
11-2:30pm

05/24/2026

New blog post!

SeleniteGreek for selēnítēs líthos, meaning moon stone, selenite is a type of sulphate mineral gypsum that is transparent. It is a crystal widely used in home decor, despite it being water soluble. It is also affordable, but no less packed with a lot of lore and interesting facts.Its name origin...

12/07/2025

https://www.greatcanadianprospecting.com/post/rhodochrosite

11/01/2025

09/24/2025

GEM STORM 2025 54TH
ANNUAL SHOW AND SALE

FRIDAY OCTOBER 17 FROM 5-9PM,
SATURDAY OCTOBER 18 FROM 10-5 PM
SUNDAY OCTOBER 19 FROM 10-5 PM

EVENT CENTRE, ST LAWRENCE
COLLEGE, 100 PORTSMOUTH
AVENUE, KINGSTON, ON

08/10/2025

https://www.greatcanadianprospecting.com/post/malachite

Malachite is a green copper carbonate hydroxide mineral with the chemical formula Cu₂CO₃(OH)₂ . It typically forms in the monoclinic crystal system, presenting in botryoidal, fibrous, stalagmitic masses & occasionally prismatic crystals.• Hardness: 3.5–4 (Mohs scale)• Specific gravity: 3...

07/07/2025

https://www.greatcanadianprospecting.com/post/labradorite

Labradorite is a fascinating mineral known for its captivating iridescent play of colors, often called "labradorescence." Labradorite is a feldspar mineral, specifically a member of the plagioclase series. This means it's a solid solution of albite (sodium-rich) and anorthite (calcium-rich). Labrado...

06/17/2025

https://www.greatcanadianprospecting.com/post/boulder-opal

Mined in Koroit, Australia, from the veins in large ironstone boulders underground, these beautiful opals, come in every colour. Second only to black opal in value, the boulder opal keeps its ironstone backing, due to the thinness of the veins in which they are mined. Others can appear like boulder....