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Fayalite
Luster is vitreous.Transparency crystals are transparent to translucent.
Crystal System is orthorhombic; 2/m 2/m 2/m.
Crystal Habits include flatten tabular to box shaped crystals, but good crystals are rare.
More commonly found as grains in alluvial gravels and as granular pockets in highly magnesium and iron rich volcanic rock.
Also massive. v Cleavage is distinct in two directions at 90 degrees.
Fracture is conchoidal.
Specific Gravity is approximately 4.3 (above average for non-metallic minerals).
Streak is white.
Other Characteristics: Index of refraction is 1.87, moderate double refraction can usually be seen and crystals are typically striated.
Associated Minerals are diopside, spinel, plagioclase feldspars, chromite, anorthite, biotite, cristobalite, hornblende, serpentine, obsidian, iron-nickel meteorites and augite.
Notable Occurrences include the Salt Lake Crater, Oahu, Hawaii; Sugarloaf Mountain, Inyo County, California and Peridot, Gila County, Arizona, USA; Lipari Islands, Sicili and Mt. Vesuvius, Italy; France; Sweden and many other locations.
Best Field Indicators are environment of formation, color, crystal habit, hardness and density.
Colors: emerald green to the more common pale yellowish green, also found greenish brown to black
Hardness: 6.5 to 7
Feldspar
Assists one in locating misplaced items and in discovering and understanding messages from within.
Ferberite
Luster is submetallic. Transparency crystals are opaque.Crystal System is monoclinic; 2/m
Crystal Habits include the flat, heavily modified, tabular crystals.
The crystals are elongated along the b axis and are generally flattened in the a axis direction.
Also as columnar aggregates and lamellar masses.
Cleavage is perfect in one direction parallel to the a and c axes.
Fracture is uneven.
Specific Gravity is approximately 7.6 (heavy even for metallic minerals)
Streak is black.
Associated Minerals are quartz, hematite, tourmalines, cassiterite, micas and pyrite.
Other Characteristics: crystals are often striated.
Notable Occurrences include Nanling Range, China; South Dakota and Colorado, USA; Russia; Korea; England and Bolivia.
Best Field Indicators are crystal habit, color, density, luster and cleavage.
Colors: black
Hardness: 4 to 4.5
Ferro-Actinolite
Relates to past life recall, shielding of the heart, and increases the life force.Encourages "brotherhood."
Fiedlerite
Luster is adamantine.Transparency: Crystals are transparent to translucent.
Crystal System is monoclinic; 2/m.
Crystal Habits include tiny tabular to platy crystals.
Cleavage is good, but not discernible.
Fracture is conchoidal.
Specific Gravity is 5.88 (very heavy for translucent minerals)
Streak is white.
Associated Minerals include paralaurionite, laurionite and phosgenite
Notable Occurrence is limited to its type locality of Lavrio (formerly Lavrion and Laurium), Greece.
Best Field Indicators are crystal habit, density and locality.
Colors: colorless and white
Hardness: 3.5
Fire Agate
This agate is a master healer when used in color therapy as it enhances, grounds, and balances.This stone ignites sexual energy and energizes the heart chakra while it burns off excess energy.
Flint
A gray, black or brown member of the quartz clan.Flint augments loyalty, courage, protection, boldness, daring, self-reliance, inner power, interpersonal communication, inspiration and overcoming shyness.
Colors: gray, black, black-and-white, beige; it is often patterned
Hardness: 7
Fluorapatite
Fluorite
Fluorite is the "official" stone of Thunder Healing Reiki.As the premier stone of Thunder Healing Reiki, it has its own website:
The Fluorite Site
Luster is vitreous.Transparency: Crystals are transparent to translucent.
Crystal System: Isometric; 4/m bar 3 2/m
Crystal Habits include the typical cube and to a lesser extent, the octahedron as well as combinations of these two and other rarer isometric habits.
Always with equant crystals; less common are crusts and botryoidal forms.
Twinning also produces penetration twins that look like two cubes grown together.
Cleavage is perfect in 4 directions forming octahedrons.
Fracture is irregular and brittle.
Specific Gravity is 3.1+ (average)
Streak is white.
Other Characteristics: Often fluorescent blue or more rarely green, white, red or violet and may be thermoluminescent, phosphorescent and triboluminescent.
Associated Minerals are many and include calcite, quartz, willemite, barite, witherite, apatite, chalcopyrite, galena, sphalerite, pyrite and other sulfides.
Notable Occurrences include in addition to those mentioned above Cumberland, England; Spain; China; Brazil; Morocco; Bancroft, Ontario, Canada; Naica, Chihuahua, Mexico; Germany; Elmwood, Tennessee; Rosiclare, Illinois; Fort Wayne, Indiana; Pugh Quarry and Wood County, Ohio; Nancy Hanks Mine, Colorado and many other USA localities as well as many other localities from around the world.
Best Field Indicators are crystal habit, color zoning, hardness (harder than calcite, but softer than quartz or apatite), fluorescence and especially the octahedral cleavage.
Colors: yellow, violet, green, rainbow colored, and shades in between
Hardness: 4
Fluorrichterite
Luster is vitreous to pearly to dull.Transparency: Crystals are generally translucent to opaque.
Crystal System is Monoclinic; 2/m
Crystal Habits include prismatic crystals with an overall nearly diamond shaped cross-section with the four points usually cut by minor prism faces. The typical termination appears to be two faces of a slightly slanted dome but is actually two of the four faces of a prism. The termination faces are not only slanted toward each other but the two faces are slanted with respect to the long axis of the crystal as well. Some terminations are rather complex and can make the crystal appear pseudo-orthorhombic. Due to dissolution reactions after initial crystallization, the crystal faces can appear pitted and the terminations can be rounded.
Twinning is commonly seen and results in a groove or notch running down the "spine" of the prismatic crystals.
Cleavage is imperfect in two directions at nearly 60 and 120 degrees.
Fracture is uneven.
Specific Gravity is approximately 3 (average for translucent minerals)
Streak is white.
Other Characteristics: Crystals can have a iridescent shimmer and associated minerals can be seen intergrown in some of the crystals filling pits and voids on their surface.
Associated Minerals are biotite, molybdenite, cancrinite and calcite
Notable Occurrence is several sites near Wilberforce, Ontario, Canada.
Best Field Indicators are locality, crystal habit (especially cross-section), color, pearly luster and cleavage
Fluorrichterite is somewhat related to the properties of richerite, biotite and augite. However, only the negative qualities of those associated crystals are generally present in Fluorrichterite.
Fluorrichterite is found in only one place, Wilberforce, Ontario, Canada.
This isolated and very limited source is appropriate for this crystal as it does not offer a large variety of helpful qualities. For that reason, Fluorrichterite is a very unusual crystal.
In fact, Fluorrichterite is a stone best used in extremely small quantities and/or for very short periods of time. In that manner, Fluorrichterite can fortify stamina and help reduce stress and promote good luck, good fortune, and good timing.
It doesn't take much Fluorrichterite to "go over the line," and realize negative outcomes such as cloudy thinking, confusion, poor stamina, and general negativity.
Fluorrichterite's volatility, ability to action quickly, along with its "cutting edge" quality does make it an excellent choice for a very FAST purification or detoxification when used judiciously.
When not in purposeful use, Fluorrichterite should be stored with or alongside a piece of citrine slightly larger than the specimen of Fluorrichterite.
Colors: dark green to blue green or less commonly brown, gray and black
Hardness: 6
Forsterite
Luster is vitreous.Transparency crystals are transparent to translucent.
Crystal System is orthorhombic; 2/m 2/m 2/m.
Crystal Habits include flatten tabular to box shaped crystals, but good crystals are rare.
More commonly found as grains in alluvial gravels and as granular xenoliths in magnesium rich volcanic rock.
Also massive.
Twinning is rare, but has produced star shaped trillings.
Cleavage is poor in two directions at 90 degrees, rather indistinct and rarely noticed.
Fracture is conchoidal.
Specific Gravity is approximately 3.2 when pure Mg2SiO4 and rises with increasing iron content (somewhat above average for non-metallic minerals).
Streak is white.
Other Characteristics: Index of refraction is 1.64 - 1.71 and has double refraction.
Associated Minerals are diopside, spinel, plagioclase feldspars, chromite, magnetite, talc, hornblende, serpentine, iron-nickel meteorites and augite.
Notable Occurrences are numerous and include the ancient source of Zagbargad (Zebirget) Island in the Red Sea off the coast of Egypt and Mogok, Myanmar (formerly known as Burma). The type locality is Mt. Vesuvius, Italy and other localities include Kohistan, Pakistan; South Africa; Ural Mountains, Russia; Norway; Sweden; France; Minas Gerais, Brazil; Eifel, Germany; Chihuahua, Mexico; Ethiopia; Mt. Franklin, Victoria, Australia; Notre-Dame-du-Laus, Quebec Canada; China and Salt Lake Crater, Oahu, Hawaii; North Carolina; Bolton, Massachusetts; Crestmore, California; New Mexico and the most productive source of peridot to date from Peridot Mesa, San Carlos Apache Reservation, Gila County, Arizona, USA.
Best Field Indicators are color, hardness, mafic or metamorphic environment, lack of good cleavage and density.
Colors: light green yellow to the more common yellowish green; also known to be colorless
Hardness: 6.5 to 7
Fossils
Fossils are the remains of ancient creatures and plants (of millions of years ago).The uses of fossils are also ancient in of themselves.
Fossils are the power tool of the Shaman and are used to amplify energy.
Being something out of time itself, they can be worn to increase the lifespan.
Amber and Jet are two other fossils.
Franckeite
Luster is metallic.Transparency crystals are opaque.
Crystal System is triclinic; bar 1
Crystal Habits include accicular sprays and crusts.
Specific Gravity is approximately 5.8 - 6.0 (above average for metallic minerals)
Streak is gray-black.
Associated Minerals include quartz, galena and pyrite as well as rare sulfides such as cylindrite, stannite, incaite and potosiite.
Notable Occurrences are limited to Las Animas District, Bolivia and Hulcani Mine, Peru.
Best Field Indicators are crystal habit, locality, color and density
Colors: gray-black to gray-white
Hardness: 2.5 to 3
Franklinite
Luster is metallic.Transparency: Crystals are opaque.
Crystal System is isometric; 4/m bar 3 2/m
Crystal Habits include octahedrons often with dodecahedral faces modifying the edges of the octahedron.
The modifying can lead to an overall rounding of the crystal. Also as massive and granular.
Cleavage is absent.
Fracture is conchoidal.
Specific Gravity is 5.0 - 5.2 (slightly above average for metallic minerals)
Streak is reddish brown.
Other characteristics: Slightly magnetic.
Associated Minerals include willemite, zincite, calcite, rhodonite and other minerals found at Franklin, New Jersey.
Notable Occurrences are limited to the world famous mines at Franklin, New Jersey, USA from where franklinite gets its name.
Best Field Indicators are crystal habit, streak, associations with other zinc minerals and locality
Colors: dark black
Hardness: 6
Fulgurite
This stone is from the Libyan desert and is used for "spirit world" work.It can also be used in the treatment of ear, nose, and throat disorders.
Fuschite (Muscovite)
Fuschite is sometimes called the "stone of health" as it can help access information on health.Fuschite is also useful for help in helping one recuperate.
Fuschite also can bring friendliness, compassion, and lightheartedness to many different situations.
It is said to speed deep healing by assisting with recovery and immunity.
It also increases energy transfer when multiple stones are used for healing purposes.
Colors: green
Hardness: 2 to 3
Fulgarite
Luster is vitreous.Transparency: Specimens are translucent.
Crystal System: Does not apply because lechatelierite is amorphous.
Habits include disseminated grains in volcanic rocks and shatter zones of meteorite impacts and as tube shaped fulgarites
Cleavage is absent.
Fracture is conchoidal.
Specific Gravity is approximately 2.5 - 2.7 (average)
Streak is white.
Other Characteristics: Non-fluorescent.
Associated rocks are shocked quartz, volcanic rocks and sandy soils.
Best Field Indicators are shape, color, density, non-fluorescence and hardness.
Colors: white, colorless or pale yellow; some fulgarites can be pale brown, gray or black
Hardness: 6.5
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