Astrophyllite and arfvedsonite differ in their chemical composition, shimmer, and price:
Chemical composition
Astrophyllite is a hydrous potassium iron titanium silicate, while arfvedsonite is a sodium amphibole.
Shimmer
Astrophyllite has a copper, reddish-brown, or bronze shimmer, while arfvedsonite has a blue shimmer.
Price
Astrophyllite is generally the more expensive of the two, sometimes fetching up to 2-4 times more than arfvedsonite.
Other fun facts
Both of these often occur along side garnet and / or eudialyte.
Arfvedsonite is closely associated with spiritual growth and finding the truth. It's said to help you visualize new possibilities as well as manifest your future desires, with some even saying it's a great stone to help reduce tension.
Similar to other brown gemstones, brown astrophyllite provides grounding, stability, and a deeper connection with others, particularly within one's support network, such as friends and family. The yellow or golden tones bring the advantages of yellow gemstones, offering increased hope, happiness, and wisdom.
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