A species of Quartz, Also known as Harlequin Quartz, Fire Quartz, Tangerine Quartz
With a nearly even coloration of brown, yellow, and red tones, ferruginous Quartz tends to form crystals that are large and striking in appearance. They are often opaque. Though sometimes translucent, this type of quartz is never transparent. It gets its coloring from hematite or limonite.
Hardness:
7
Density:
2.59 - 2.65 g/cm³
On This Page
Properties
Health Risk
Values
Market Price
How to Care
Characteristics
Cultural
Common Questions
General Info About Ferruginous Quartz
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Physical Properties of Ferruginous Quartz
Luster
Vitreous
Diaphaneity
Translucent
Colors
Red, yellow, orange, brown
Magnetism
Non-magnetic
Tenacity
Brittle
Cleavage
None
Fracture
Conchoidal
Streak
White
Crystal System
Trigonal
Hardness
7 , Hard
Density
2.59 - 2.65 g/cm³, Normal Weight
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Chemical Properties of Ferruginous Quartz
Chemical Classification
Silicates
Formula
SiO2
Elements listed
O, Si
Optical Properties of Ferruginous Quartz
Refractive Index
1.544-1.553
Birefringence
0.009
Pleochroism
Weakly dichroic
Dispersion
0.013
Optical Character
Biaxial positive
Health Risk of Ferruginous Quartz
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What is the hazards of Ferruginous Quartz?
Harm Type
Physical Toxicity
Ferruginous Quartz in powdered form can be toxic due to its Crystalline Silica content.
Quartz, silica, crystalline silica and flint are non-toxic materials, but very fine dust containing quartz, known as respirable crystalline silicon (RCS), can cause serious and fatal lung disease. Lapidaries should exercise caution when cutting silica.
How to prevent the risks of Ferruginous Quartz?
Avoid long-term inhalation of its dust!
Ferruginous Quartz is typically non-toxic unless it's in powder form. Long-term exposure to finely ground powder may lead to silicosis. Therefore, when cutting or polishing ferruginous Quartz, be sure to wear a dust mask to avoid inhaling its dust.
Discover the Value of Ferruginous Quartz
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Rarity
Easy to obtain
Collection Recommendation
4.0 out of 5
Popularity
4.1
Aesthetic
4.1
Rarity
3.7
Sci-Cultural Value
3.8
The Market Price of Ferruginous Quartz
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Rough/Tumbled Price
Smaller Than Hand (0-1.5in)
$2 - $20
Close Hand (1.5-3in)
$20 - $65
Equal To Hand (3-6in)
$60 - $110
Bigger Than Hand (>6in)
$95
Cluster/Geode Price
Smaller or Equal To Hand (<3in)
$7 - $80
Equal To Hand (3-6in)
$70 - $110
Bigger Than Hand (>6in)
$110
How to Care for Ferruginous Quartz?
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Durability
Durable
Scratch resistance
Good
Toughness of Ferruginous Quartz
Poor
Fair
Good
Excellent
Ferruginous Quartz has good toughness due to the absence of cleavage and a sturdy internal structure, even with the presence of hematite or limonite inclusions that might introduce slight weaknesses.
Stability of Ferruginous Quartz
Sensitive
Stable
Ferruginous Quartz can handle most average conditions. However, it is sensitive to prolonged exposure to the water, heat and acid chemicals, which may present occasional challenges.
More Care Tips of Ferruginous Quartz
Characteristics of Ferruginous Quartz
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Cultural Significance of Ferruginous Quartz
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Uses of Ferruginous Quartz
Specimens of ferruginous Quartz are usually massive, opaque, and interestingly shaped, making them attractive for mineral collections. Unlike other quartz varieties such as Amethyst, Citrine or Rose quartz, it is not of particular interest as a lapidary stone and doesn't have particular applied purposes.
Healing Properties of Ferruginous Quartz
Ferruginous Quartz is believed to be a high-energy stone that actively stabilizes the body, relieves pain, and brings emotional stability and equilibrium. It supposedly accelerates the healing process, particularly for conditions relating to blood, anemia, and leg cramps. Ferruginous Quartz is said to create more clarity of thought, making space for high concentration levels and positive ideas.
Chakras
Root, Sacral, Solar Plexus
Common Questions People Also Ask
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