Gagarinite-(ce)
Gagarinite-(Ce)
A variety of Minerals
What is Gagarinite-(ce)?
Gagarinite-(Ce) previously zajacite-(Ce) is a rare radioactive fluoride mineral with formula Na(REExCa1−x)(REEyCa1−y)F6. REE refers to rare-earth elements, mostly those belonging to the lanthanide series. It crystallizes in the trigonal rhombohedral system and has a white vitreous appearance with a conchoidal fracture. It has a Mohs hardness of 3.5 and a specific gravity of 4.44 to 4.55. Zajacite is transparent with refractive indices nω = 1.483 and nε = 1.503. Gagarinite-(Y) is a yttrium-rich analog. It occurs as creamy to white anhedral to subhedral grains in pegmatite and aplite pods or lenses in a peralkaline igneous intrusion. It was discovered in 1993 at Strange Lake, Quebec – Labrador, (56°20'N, 64°10'W) and was initially named for Ihor Stephan Zajac, who led the expedition responsible for its discovery, and who first recognized the presence of the new mineral. The mineral was renamed gagarinite-(Ce) in 2010 by the IMA. The new name is for Russian cosmonaut Yuri Gagarin (1934–1968).
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Gagarinite-(ce) before comparing listings or appraisals.
Size & Weight
Larger, intact specimens usually command higher prices.
Rarity & Demand
Scarce material or popular varieties sell at a premium.
Condition & Finish
Chips, repairs, and heavy wear lower value; clean prep helps.
Treatment & Provenance
Untreated specimens with documented locality are prized.
Gagarinite-(ce) Localities Map
See where Gagarinite-(ce) is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Colourless to light pink
- Hardness (Mohs)
- 3.5
Chemical Properties
- Chemical Formula
- Na(REExCa1-x)(REEyCa1-y)F6
- Elements
- Ca, Ce, F, Na
Also Known As
Identify Gagarinite-(ce) Instantly
- Snap a photo, get instant results
- 6,700+ rocks, minerals & crystals
- Discover collecting spots near you
Gagarinite-(ce) FAQs
How do I identify Gagarinite-(ce)?
Gagarinite-(ce) can be identified by its hardness of 3.5 on the Mohs scale, Colourless to light pink color. Look for these key characteristics when examining specimens.
What color is Gagarinite-(ce)?
Gagarinite-(ce) typically appears in Colourless to light pink. Color can vary depending on impurities and formation conditions.
How hard is Gagarinite-(ce)?
Gagarinite-(ce) has a hardness of 3.5 on the Mohs scale. This gives it moderate hardness.
%252FAbenakiite-(ce)-01.jpg&size=small)
