- The
scapolites (Gr****: σκάπος, "rod", and λίθος, "stone") are a
group of rock-forming
silicate minerals composed of aluminium, calcium, and
sodium silicate...
-
Meionite is a
tectosilicate belonging to the
scapolite group with the
formula Ca4Al6Si6O24CO3. Some
samples may also
contain a
sulfate group. It was first...
-
Crocidolite (var.)
Rosasite Rutile Samarskite Sanidine Sapphirine Sarcolite Scapolite Marialite Meionite Scheelite Schizolite Scorodite Selenite Sellaite Senarmontite...
-
Nosean – Na8(Al6Si6O24)(SO4)·H2O
Tugtupite – Na4(BeAlSi4O12)Cl
Scapolite group Marialite – Na4Al3Si9O24Cl
Meionite – Ca4Al6Si6O24CO3
Zeolite group...
-
Minerals occurring with
serendibite include diopside, spinel, phlogopite,
scapolite, calcite, tremolite, apatite, grandidierite, sinhalite, hyalophane, uvite...
- rocks. Such
examples include biotite-rich zones, amphibolite-calcite-
scapolite alteration and
other unusual skarn ****emblages. The
process is called...
-
increasing meionite content.
Marialite is the
sodium endmember of the
scapolite group and a
solid solution exists between marialite and meionite, the...
- labradorite, selenite, feldspar, apatite, moonstone,
thomsonite and
scapolite amongst others.
Chatoyancy is not
limited to
gemstones but can also be...
- grossular-andradite garnet,
calcic pyroxene, vesuvianite,
epidote and
scapolite.
Rodingites are
common where mafic rocks are in
proximity to serpentinized...
- The
Dumbarton Oaks
birthing figure is a
possibly Aztec scapolite figurine of a
woman giving childbirth in a
squatting position.
Housed in the Dumbarton...
