inyoite

Hydrated formula equivalence

Record formula normalization and verify that external identifiers represent the intended hydration state.

1. Does the record describe CaB3O3(OH)5·4H2O, an equivalent formula, or a chemically different calcium borate? definition
2. Which authoritative records establish any proposed CAS, EC or PubChem mapping, including its treatment of crystal water? provenance

Species versus composition

Require evidence beyond calcium-boron proportions before assigning an inyoite identity.

1. What diffraction and hydration evidence excludes meyerhofferite and colemanite? boundary
2. Does the identification apply to one grain, a surface coating or the bulk specimen? boundary

Pattern agreement

Assess whole-pattern agreement, cell-setting conventions and unexplained reflections.

1. Which inyoite reference pattern matches the measured peak positions and intensities? measurement
2. Do residual peaks indicate associated minerals, alteration products or an inadequate structural match? boundary
3. What preparation and acquisition conditions could have changed the hydrated sample? provenance

Supporting property consistency

Compare measured properties with references without turning variable observations into rigid thresholds.

1. Are the measured density, hardness and optical properties consistent with inyoite references? measurement
2. Could porosity, intergrowths, surface alteration or preparation explain a discrepancy? boundary

Alteration versus appearance

Whitening and reduced transparency are reported on dehydration, and water solubility makes liquid contact relevant. [Handbook of Mineralogy](https://www.handbookofmineralogy.org/pdfs/inyoite.pdf)

1. What temperature, humidity and liquid-contact history accompanies changes in transparency or surface texture? provenance
2. Does analysis confirm a replacement phase, or is alteration inferred only from appearance? measurement
3. What evidence supports a proposed cleaning or storage treatment for this specimen? action

Conditioned transformation

Separate dehydration, dehydroxylation, recrystallization and any demonstrated melting rather than assigning one unqualified transition temperature.

1. What mass-loss and thermal events occur at the stated heating rate, atmosphere and sample mass? measurement
2. Which phases are confirmed after each event, and what evidence supports the event assignment? measurement

Representative composition

Tie mineral abundance and chemical assays to the sampled portion and analytical basis.

1. What fraction of the sampled material is confirmed inyoite, and which other phases are present? measurement
2. How representative is the analysed portion of the specimen or material lot? boundary

Occurrence versus genesis

Include non-evaporitic occurrences: the Fuka study describes fissure fillings in calcium borates within crystalline limestone near skarns. [Inyoite study](https://www.jstage.jst.go.jp/article/jmps/99/2/99_2_67/_pdf)

1. What locality records and host-mineral textures establish this specimen's occurrence? provenance
2. Which observations support primary growth, later precipitation or replacement, and which formation claims remain interpretations? boundary

Task-specific suitability

Use hydration state, phase abundance and impurities to qualify proposed use.

1. Does the specimen meet the phase-purity and preservation requirements of the proposed analysis or reference use? action
2. For a boron-content assessment, what assay basis and moisture correction distinguish measured content from an ideal-formula estimate? measurement

Material-specific controls

Keep unverified classifications explicit and distinguish mineral-phase evidence from supplier or mixture records.

1. Which current safety records explicitly cover inyoite or this characterized inyoite-bearing material? provenance
2. For the proposed grinding, heating or dissolution, what controls follow from the documented material composition and operation? action
3. Do any cited exposure limits or GHS classifications apply to this mineral, an associated impurity or a broader borate category? boundary

Check these first

Recalled without web access and unsourced; every item is a lead to verify.

1. Which of these check these first hold for the sense of inyoite this model covers, and on what evidence? provenance

Identifiers and schemes

Recalled without web access and unsourced; every item is a lead to verify.

1. Which of these identifiers and schemes hold for the sense of inyoite this model covers, and on what evidence? provenance

Real-world use

Recalled without web access and unsourced; every item is a lead to verify.

1. Which of these real-world use hold for the sense of inyoite this model covers, and on what evidence? provenance

Typical measurements

Recalled without web access and unsourced; every item is a lead to verify.

1. Which of these typical measurements hold for the sense of inyoite this model covers, and on what evidence? provenance

Failure modes and hazards

Recalled without web access and unsourced; every item is a lead to verify.

1. Which of these failure modes and hazards hold for the sense of inyoite this model covers, and on what evidence? provenance

Regional variation

Recalled without web access and unsourced; every item is a lead to verify.

1. Which of these regional variation hold for the sense of inyoite this model covers, and on what evidence? provenance

Neighbouring kinds and how to tell them apart

Recalled without web access and unsourced; every item is a lead to verify.

1. Which of these neighbouring kinds and how to tell them apart hold for the sense of inyoite this model covers, and on what evidence? provenance