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Chinese Name:歪鹼正長岩 (屬二長岩種)
English Name:Larvikite / Laurvikite (a variety of Monzonite)
Other Name:Norwegian Moonstone / Puplich-houseite / Pub Stone
Chemical Composition:Combination of all 3 members of feldspar:
NaAlSi3O8 鈉鋁硅酸鹽 (Sodium Aluminum silicate)
KAlSi3O8 鉀鋁硅酸鹽 (Potassium Aluminum silicate)
CaAlSi3O8 鈣鋁硅酸鹽 (Calcium Aluminium silicate)
Hardness:6.0–6.5
SG:~ 2.59
Related Chakra:Throat
Locality:(Larvik, Southern Norway)
Colour:Light to dark bluish gray with two more-or-less distinct varieties - one light bluish gray, the other dark bluish gray with golden brown overtones.
Remarks:Larvikite is a variety of monzonite (二長岩), notable for the presence of handsome, thumbnail-sized crystals of feldspar. These feldspars are known as ternary (三重的) because they contain significant components of all three end-member feldspars. The feldspar has partly unmixed on the micro-scale to form a perthite (條紋長石), and the presence of the alternating alkali feldspar (鹼性長石) and plagioclase (斜長石) layers give its characteristic silver blue sheen (Schiller effect) on polished surfaces. Olivine (貴橄欖石) can be present along with Apatite 磷灰石, and locally Quartz. Usually Titanium (鈦合金) rich, with Titanaugite (鈦輝石) and/or Titanomagnetite (鈦磁鐵礦) present.

The name originates from the town of Larvik in Norway, where this type of igneous rock is found.

 
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Functions:
1. The black "spots" in this crystal provide grounding and protecting.
2. It blends the joyous elemental energy which is very light with spiritual energy. It allows us to enjoy ourselves more.
3. Higher order spiritual stone. Enhances creative communication.
4. Used in treatment of speech and language disorders. Allows an introverted person to emote and tell their feelings. (Throat)
   
General care:
 
1. Avoid contact with perfumes, hair spay, make-up.
2. Avoid knocks.
3. Avoid heat.
4. Avoid chemicals.
5. Avoid using ultrasonic and steam cleaners.
6. Cleaning: Use lukewarm plain water, mild soap and a soft brush to scrub behind the stone where dirt can collect.
 

Feldspar Group Crystal System Colour
Amazonite (Microcline) Triclinic Green, bluish-green
Moonstone (Plagioclase) Monoclinic Transparent, blue, white, pale sheen, yellow
Orthoclase (Adularia,Transparent type) Monoclinic Transparent to opaque, champagn-coloured
Labradorite (Spectrolite) Triclinic Gray, with colourful iridescence, also colourless, brownish
Sunstone (Oligoclase)(Aventurine Feldspar)(Heliotite) Triclinic Red-brown, sparkling
Albite Triclinic Common in white, also in green, transparent to opaque.
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