- In geology, a
vein is a
distinct sheetlike body of
crystallized minerals within a rock.
Veins form when
mineral constituents carried by an
aqueous solution...
-
origin to the
Saxon word Querkluftertz,
meaning cross-
vein ore. The
Ancient Gr****s
referred to
quartz as κρύσταλλος (krustallos)
derived from the Ancient...
- use of
vein quartz. This
involved experimental knapping to
understand the
fracture mechanics of the material; the
experimental burning of
quartz; and an...
- mudcracks. This
conglomerate consists of
pebbles and
cobbles of
white vein quartz, red and
green quartzite, sandstone, red and gray chert, and red shale...
-
Pothupadi Prospect: A
sample of
vein quartz traversing amphibolite ****a**** 4 g/t gold.
Mundaiyur Prospect: Gold
occurs in
quartz veins over a
length of 300 m with...
-
Quartz reef
mining is a type of gold
mining in "reefs" (
veins) of
quartz.
Quartz is one of the most
common minerals in the Earth's crust, and most quartz...
-
Quartzite is a hard, non-foliated
metamorphic rock
which was
originally pure
quartz sandstone.
Sandstone is
converted into
quartzite through heating and pressure...
- growth, and may lack the Moss
defects of
quartz grains in granites. Thus
production of silt from
vein quartz is very
difficult by any mechanism, whereas...
-
Amethyst is a
violet variety of
quartz. The name
comes from the
Koine Gr**** αμέθυστος
amethystos from α- a-, "not" and μεθύσκω (Ancient Gr****) methysko...
- Unconformity-related
deposits Sandstone deposits Quartz-pebble
conglomerate deposits Breccia complex deposits Vein deposits Intrusive deposits (Alaskites) Phosphorite...
