Table 1 Summary of the six nephrite samples presented in detail in this study. Other samples are listed in Supplementary Item 2 and Table S1.
Sample | Location (latitude, longitude in WGS84) | Host serpentinite body | Structural setting | Sample mineralogy | Key references | |
|---|---|---|---|---|---|---|
MR16 primary vein nephrite | Mt Raddle, Westland, New Zealand | (− 44.241, 168.476) | Livingstone Fault, Dun Mountain Ophiolite (DMO) | Reaction zone between serpentinite shear zone and quartzofeldspathic schist | Tremolite, lizardite, chrysotile, Minor: magnetite, Cr-spinel | |
JC13 folded vein nephrite | Jade Cove, California, USA | (35.928, − 121.469) | Franciscan Complex serpentinite | Reaction zone at contact of serpentinite blocks in metagraywacke mélange | Tremolite, lizardite, chrysotile, Minor: magnetite, Cr-spinel | |
OU46117 crenulated nephrite | Whitcombe River, New Zealand | (− 43.067, 171.033) | Pounamu Ultramafics | Reaction zone at contact of lenses of serpentinite in a greenschist mélange | Tremolite | |
OU65872 crenulated nephrite | Muddy Creek, Northwest Otago, New Zealand | (− 44.168, 169.280) | Ultramafic block in Haast quartzofeldspathic schist | Faulted contact between serpentinite and gabbro lens and quartzofeldspathic schist | Tremolite, minor: fuchsite, clinochlore | |
TW04 foliated semi-nephrite | Hualien County, Taiwan | (23.862, 121.454) | Mafic to ultramafic tectonic blocks in the Yuli belt | Serpentinite shear zone | Tremolite | Refs43 |
HCF2 domainal/nodular nephrite | Hacket Creek, Nelson, New Zealand | (− 41.402, 173.239) | Serpentinised ultramafic portion of Dun Mountain Ophiolite (DMO) | Reaction zone between metagabbro and serpentinite in tectonised portion of DMO | Tremolite, Minor: Cr-spinel | |
