Llanite
A variety of Rhyolite
What is Llanite?
Found exclusively in Llano County (Texas, USA) from which it gets its name, llanite is a granite rock of reddish-brown color. Its attractiveness comes from the small crystals of blue Quartz that are found within the mass of the rock. Since this material can take a fine polish, it's often available on the market in the form of tumbled stones and used for carved ornamental objects.
Uses & Applications
Llanite is a rare mineral that, due to its scarcity, is a highly collectible mineral. Llanite is very strong stone and contains interesting crystal inclusions which makes it a useful and attractive material often installed in table tops and kitchen surfaces.
Healing Properties
Llanite is an excellent stone for the procrastinator who needs a little encouragement. It works on the Crown and Third Eye chakras to stimulate creativity and insightful thinking. Believers say it encourages progress and change while boosting self-esteem and confidence. Use it for meditation, wear it, or keep it in the home.
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Llanite Localities Map
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Key Characteristics
Characteristics of Llanite
Published radiometric dating on this llanite indicates that it's 1.106 billion years old (late Mesoproterozoic). The quartz crystals found in llanite are blue hexagonal bipyramids. The unusual blue coloration of the quartz is thought to be due to ilmenite inclusions. Llanite, which is similar to granite, is very strong, with a crushing strength of 37,800 lb/in² or 26,577,180 kg/m².
Formation of Llanite
Llanite comes from a hypabyssal porphyritic rhyolite dike that intrudes Precambrian metamorphics in the Llano Uplift of central Texas.
Quick Facts
Physical Properties
- Color
- Blue, light grayish-orange, pink to red, brown
- Hardness (Mohs)
- 6 - 7
- Density
- 2.4 - 2.7 g/cm³
Also Known As
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