It is the presence color zoning lines, or "bands" as it is
also known, in some minerals.
It is a white, yellow or colorless mineral. The chemical formula is
BaSO4 and the principal or barium is used in paints, drilling muds and
as a filler for paper and textiles. Synonyms: baryte, barytes.
It is the rock which does not contain minerals in sufficient quantities
to allow for economically profitable mining.
It is a type of cleavage which is exhibited on a horizontal plane of a
mineral by the way of its base. Minerals having basal cleavage are
sometimes "peeled." One of the example of basal cleavage is
the minerals of Mica group.
It is a volcanic rock.
It is the top and bottom closing points of a crystal. It exists only in
those minerals which belong to the hexagonal, orthorhombic, tetragonal,
and trigonal crystal systems. It is also called basal pinicoid.
It describes to an igneous rock which has a relatively low silica
content, between 45-52% SiO2. They are relatively rich in iron,
magnesium and calcium and is thus included in most mafic rocks.
It is a term for the enormous mass of igneous rock which has intruded
through a layer of sedimentary rock at great depths.
IIt is a complex and scientific test being conducted to identify a
mineral. A mineral is first crushed and then mixed into a borax flux and
is heated until a glassy bead forms. Next, the bead is touched by the
mineral powder and one of the several colors appear on the bead,
depending on the metallic elements of the mineral. In most of the cases,
the colors are different when it is heated with an oxidizing and
reducing flame, as well as when the bead is hot and cold.
It is a deposit of granular rock which is the result of the erosion of
It is the horizontal layers of the sedimentary rock which is still
unchanged since the sedimentation process.
It is the layer of solid rock which is found underneath the soil.
It is the process of concentration of valuable components of an ore or
any other mineral commodity. It commonly includes the multiple stages
like crushing, grinding, washing, screening, flotation, roasting, etc.
It is a crystal shape in form with a plane which divides a crystal into
two different pyramids base to base.
It is a type of coal which containing naturally occurring tar-like
hydrocarbon mineral of indefinite composition. The consistency of
bitiminous ranges from a thick liquid to a brittle solid.
It is a crystal habit which defines flat, elongated, "knife-like"
crystals, like Kyanite.
It is technique of breaking of an ore in an underground or open-pit
It is complex and scientific test, conducted to identify a mineral. In
the process, first a mineral fragment is placed in a cavity on a
charcoal block and a horizontal flame is sent towards it using a
blowpipe. Different reaction takes place for different mineral. Certain
metals have a characteristic color when flamed, some form a bead, others
give off fumes, and a few volatilize.
It is a type of coal which comprises mostly of algal material with
fungal matter. (Also see sapropelic)
It is a group of minerals which are the compounds of one or more
metallic elements being combined with the borate radical, B2O3. The
group forms further two sub-groups, Hydrous borates and Anhydrous
It is chemical of industrial use for manufacturing glass and ceramics.
It is an anhydrous form of sodium borate, Na2
There is a mineral borax (Na2
different from the chemical borax as it contains water. In fact, the
mineral borax is an or of the chemical borax.
It is a rock which has been broken mechanically, hydraulically or
pnewumatically into angular fragments and re-cemented. Adjective:
It is a form of tenacity which defines a hammered mineral that results
in a fine powder or small crumbs. Brittle minerals leave fine powder
It is to remove mineral susbstances in substantial quantities, usually
above 50 tonnes, to do mineral processing tests.