{"id":"W4387454576","doi":"10.1180/mgm.2023.65","title":"Letnikovite-(Ce), (Na□)Ca<sub>2</sub>Ce<sub>2</sub>[Si<sub>7</sub>O<sub>17</sub>(OH)]F<sub>4</sub>(H<sub>2</sub>O)<sub>4,</sub> a new mineral from the Darai-Pioz alkaline massif, Tajikistan: mineral description, crystal structure and a new single [Si<sub>7</sub>O<sub>17</sub>(OH)] sheet","year":2023,"lang":"en","type":"article","venue":"Mineralogical Magazine","topic":"Crystal Structures and Properties","field":"Materials Science","cited_by":1,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Manitoba","funders":"Natural Sciences and Engineering Research Council of Canada","keywords":"Aegirine; Monoclinic crystal system; Chemical composition; Quartz; Crystallography; Analytical Chemistry (journal); Peralkaline rock; Chemistry; Mineralogy; Fluorite; Mohs scale of mineral hardness; Mineral; Materials science; Crystal structure; Geology","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.00005443909,0.0002906448,0.0001499645,0.000714763,0.0004625815,0.0005514995,0.0002545619,0.0002377098,0.001790633],"category_scores_gemma":[0.00009509427,0.0001213795,0.0001190584,0.0006199823,0.0003341556,0.0003017684,0.0002625045,0.0001469847,0.0002702181],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0007367518,"about_ca_system_score_gemma":0.000617647,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.008506846,"about_ca_topic_score_gemma":0.01648759,"domain_scores_codex":[0.9999493,0.000001772264,0.000005127883,0.00001748626,0.00001862855,0.000007638744],"domain_scores_gemma":[0.9999681,0.00000225866,0.00001144922,0.000003281505,0.000009198857,0.000005778962],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"bench_or_experimental","study_design_scores_codex":[0.0003552006,0.00004973227,0.0613483,0.0004173064,0.00005321336,0.0009025948,0.0003101883,0.0008530235,0.8995319,0.002070758,0.0004261281,0.03368168],"study_design_scores_gemma":[0.0001121302,0.0002317891,0.4505517,0.00008977832,0.0001427305,0.005828425,0.001420554,0.001570291,0.3614736,0.001518588,0.1770149,0.00004542248],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9897857,0.001487638,0.00150055,0.00007496759,0.00001942557,0.00003835372,0.0009275585,0.00005297586,0.006112803],"genre_scores_gemma":[0.9901518,0.0006204155,0.002091826,0.00002838096,0.000005892513,0.00001325043,0.001218388,0.00001769953,0.005852325],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.008506846,"threshold_uncertainty_score":0.01691467,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02572194232853415,"score_gpt":0.2224530768299748,"score_spread":0.1967311345014407,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}