Browsing ELibrary by Author "Franz G."

Now showing items 1-4 of 4

EXPERIMENTAL INVESTIGATION OF ZOISITE-CLINOZOISITE PHASE EQUILIBRIA IN THE SYSTEM CAO-FE2O3-AL2O3-SIO2-H2O

Brunsmann A.; Franz G.; Heinrich W. (2002)

The system Ca2Al3Si3O11(O/OH)-Ca2Al2FeSi3O11(O/OH), with emphasis on the Al-rich portion, was investigated by synthesis experiments at 0.5 and 2.0 GPa, 500-800 °C, using the technique of producing overgrowths on natural ...
PHYSICAL AND CHEMICAL PROPERTIES OF THE EPIDOTE MINERALS- AN INTRODUCTION-

Franz G.; Liebscher A. (2004)

Epidote minerals are known since the 18th century, but at that time the greenish to dark colored varieties were termed actinolite or schorl and not distinguished from the minerals to which these names apply today. Haüy deﬁ ...
SYNTHESIS OF CA-TOURMALINE IN THE SYSTEM CAO-MGO-AL2O3-SIO2-B2O3-H2O-HCL

von Goerne G.; Franz G. (2000)

Ca-tourmaline has been synthesized hydrothermally in the presence of Ca(OH)2 and CaCl2-bearing solutions of different concentration at T = 300-700 °C at a constant fluid pressure of 200 MPa in the system CaO-MgO-Al2O3-Si ...
Synthesis of tourmaline solid solutions in the system Na2O-MgO-Al2O3-SiO2-B2O3-H2O-HCl and the distribution of Na between tourmaline and fluid at 300 to 700 °C and 200 MPa

v.Goerne G.; Franz G.; Heinrich W. (2001)

Tourmaline has been synthesized hydrothermally at 200 MPa between 300 and 700 °C from oxide mixtures with Mg–Al ratios for the end members dravite NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) and Mg-foitite ❏(Mg2Al)Al6 (Si6O18)(BO3)3(OH)3(OH). ...

Search DSpace