Astrophyllite is a rare mineral that often bears a distinctive crystalline form. Derived from the Greek words for “star” and “leaf”, astrophyllite crystals often occur in striking, star-like clusters. The mineral is transparent and usually takes on a golden or brownish hue – though occasionally used for jewelry, it is more often sought after by mineral collectors.
Hardness:
3
Density:
3.2 - 3.4 g/cm³
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General Info About Astrophyllite
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Physical Properties of Astrophyllite
Luster
Pearly, Greasy, Sub-metallic
Diaphaneity
Translucent to opaque
Colors
Bronze-yellow, golden yellow, brown to reddish brown
Magnetism
Non-magnetic
Tenacity
Brittle
Cleavage
Perfect
Fracture
Uneven
Streak
Golden
Crystal System
Triclinic
Hardness
3 , Soft
Density
3.2 - 3.4 g/cm³, Normal Weight
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Chemical Properties of Astrophyllite
Chemical Classification
Silicates
Formula
K2NaFe2+7Ti2Si8O26(OH)4F
Elements listed
F, Fe, H, K, Na, O, Si, Ti
Common Impurities
Nb, Ta, Zr, Al, Mg, Ca
Optical Properties of Astrophyllite
Refractive Index
1.678-1.758
Pleochroism
Strong: deep orange-red, orange-yellow, lemon-yellow
Optical Character
Biaxial positive
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Rarity
Rare
Characteristics of Astrophyllite
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Cultural Significance of Astrophyllite
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Uses of Astrophyllite
Astrophyllite is a extremely rare mineral, and as such has very few uses outside of collector's pieces. However, it is often found near other important rocks and minerals, like mica and feldspar, making it an indicator for other commonly mined materials.
Distribution of Astrophyllite
Astrophyllite is found in a few scarce, remote localities: Mont-Saint-Hilaire, Quebec, Canada; Pikes Peak, Colorado, US; Narsarsuk and Kangerdluarsuk, Greenland; Brevig, Norway; and the Kola Peninsula, Russia.
Etymology of Astrophyllite
Heavy, soft and fragile, astrophyllite typically forms as bladed, radiating stellate aggregates. It is this crystal habit that gives astrophyllite its name, from the Greek words astron meaning "star" and phyllon meaning "leaf".
Healing Properties of Astrophyllite
Astrophyllite is believed to reveal a person's true self and help them discover their purpose in life. It is said to remove negative energy and advocate self-love and acceptance. Often called the marriage stone, it is believed to promote fidelity and many say it helps a person deal with major transformations throughout life. It is said to be more powerful when used on the third eye chakra, the soul star chakra, and the crown chakra.
Chakras
Root, Sacral, Solar Plexus, Heart, Throat, Third Eye, Crown
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