Mineral Evolution Database

Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.

Mineral locality data provided by mindat.org

The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.

Locality Name:
Ihorombe, Madagascar

mindat Locality ID: 58527
mindat URL: http://www.mindat.org/loc-58527.html

Tectonic Settings:

Total number of sublocalities beneath "Ihorombe, Madagascar": 74
Total number of bottom-level sublocalities: 53

Number of Child Localities: 3
Child Localities:
Iakora
Ihosy
Ivohibe

Latitude: 22°33'55"S
Longitude: 45°53'41"E
Decimal Degree (lat, lon): -22.565277777778,45.894722222222

A	This mineral is Anthropogenic.
G	This mineral is directly dated.
B	This mineral is reported as having this age.
Y	This mineral is using an age reported as an element mineralization period.
O	This mineral is using an age calculated from all data at the locality.
R	The age displayed for this mineral originates from a different, non-child locality.
P	The age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
	This mineral's age has not yet been recorded.

Amphibole	Andalusite	Baryte	Beryl	Calcite	Chlorite	Clay	Clinozoisite	Corundum	Diaspore
Epidote	Feldspar	Fluorite	Garnet	Kornerupine	Mica	Monazite	Natrolite	None	Not in a structural group
Olivine	Pyrite	Pyroxene	Quartz	Rutile	Sapphirine	Scapolite	Spinel	Titanite	Topaz
Tourmaline	Zircon

Albite ()*	Almandine ()*	Andalusite ()*	Anhydrite ()*	Anorthite ()*
Baryte ()*	Beryl ()*	Calcite ()*	Cheralite ()*	Chrysoberyl ()*
Clinochlore ()*	Clinozoisite ()*	Cordierite ()*	Corundum ()*	Diaspore ()*
Diopside ()*	Dravite ()*	Edenite ()*	Elbaite ()*	Epidote ()*
Ferrohögbomite-2N2S ()*	Grandidierite ()*	Hematite ()*	Ilmenite ()*	Kornerupine ()*
Kyanite ()*	Magnesiotaaffeite-6N'3S ()*	Magnetite ()*	Meionite ()*	Muscovite ()*
Phlogopite ()*	Pyrite ()*	Quartz ()*	Rutile ()*	Sapphirine ()*
Scolecite ()*	Serendibite ()*	Sillimanite ()*	Spinel ()*	Thorianite ()*
Titanite ()*	Topaz ()*	Zircon ()*

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Al B Ba Be C Ca F Fe H K Li Mg Na O P S Si Th Ti Zn Zr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Amphibole Andalusite Baryte Beryl Calcite Chlorite Clay Clinozoisite Corundum Diaspore
Epidote Feldspar Fluorite Garnet Kornerupine Mica Monazite Natrolite None Not in a structural group
Olivine Pyrite Pyroxene Quartz Rutile Sapphirine Scapolite Spinel Titanite Topaz
Tourmaline Zircon

43 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Albite ()*	Feldspar	Na(AlSi₃O₈)	1	79436	8803
Almandine ()*	Garnet	Fe²⁺₃Al₂(SiO₄)₃	1	79445	2353
Andalusite ()*	Andalusite	Al₂SiO₅	1	79416	1310
Anhydrite ()*	Not in a structural group	Ca(SO₄)	1	79409	1588
Anorthite ()*	Feldspar	Ca(Al₂Si₂O₈)	3	79393,79426,79443	1036
Baryte ()*	Baryte	Ba(SO₄)	1	79436	11547
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈	4	79394,79416,79442,79460	4286
Calcite ()*	Calcite	Ca(CO₃)	3	79393,79423,79443	27770
Cheralite ()*	Monazite	CaTh(PO₄)₂	1	79436	50
Chrysoberyl ()*	Olivine	BeAl₂O₄	3	79397,79416,79432	321
Clinochlore ()*	Chlorite Clay	Mg₅Al(AlSi₃O₁₀)(OH)₈	2	79440,79441	1756
Clinozoisite ()*	Clinozoisite Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)	1	79441	1025
Cordierite ()*	Beryl	Mg₂Al₄Si₅O₁₈	4	79398,79414,79427,79445	1008
Corundum ()*	Corundum	Al₂O₃	19	79404,79405,79406,79412,79416,79418,79420,79421,79426,79427,79432,79435,79436,79437,79438,79439,79452,79453,79462	1797
Diaspore ()*	Diaspore	AlO(OH)	1	79436	481
Diopside ()*	Pyroxene	CaMgSi₂O₆	5	79395,79440,79441,79443,79454	4135
Dravite ()*	Tourmaline	NaMg₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	1	79441	648
Edenite ()*	Amphibole	NaCa₂Mg₅(Si₇Al)O₂₂(OH)₂	2	79426,79427	160
Elbaite ()*	Tourmaline	Na(Al_1.5Li_1.5)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	1	79416	520
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	1	79441	8173
Ferrohögbomite-2N2S ()*	None	(Fe,Mg,Zn,Al)₃(Al,Ti,Fe)₈O₁₅(OH)	6	79404,79405,79406,79412,79452,79453	13
Grandidierite ()*	None	MgAl₃O₂(BO₃)(SiO₄)	1	79414	40
Hematite ()*	Corundum	Fe₂O₃	2	79405,79412	14640
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	2	79405,79412	5433
Kornerupine ()*	Kornerupine	(Mg,Fe²⁺,Al, )₁₀(Si,Al,B)₅O₂₁(OH,F)₂	2	79398,79463	68
Kyanite ()*	Not in a structural group	Al₂OSiO₄	1	79416	1507
Magnesiotaaffeite-6N'3S ()*	None	Mg₂BeAl₆O₁₂	2	79426,79440	9
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	5	79405,79406,79412,79442,79462	14899
Meionite ()*	Scapolite	Ca₄Al₆Si₆O₂₄(CO₃)	1	79454	176
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	1	79462	17380
Phlogopite ()*	Mica Clay	KMg₃(AlSi₃O₁₀)(OH)₂	16	79393,79395,79423,79424,79426,79428,79429,79430,79440,79447,79450,79451,79455,79456,79457,79461	2273
Pyrite ()*	Pyrite	FeS₂	1	79436	39462
Quartz ()*	Quartz	SiO₂	5	79406,79414,79416,79442,79445	61156
Rutile ()*	Rutile	TiO₂	2	79405,79412	5614
Sapphirine ()*	Sapphirine	Mg₄(Mg₃Al₉)O₄[Si₃Al₉O₃₆]	6	79426,79427,79436,79438,79439,79462	129
Scolecite ()*	Natrolite	Ca(Si₃Al₂)O₁₀·3H₂O	1	79426	390
Serendibite ()*	Sapphirine	Ca₄[Mg₆Al₆]O₄[Si₆B₃Al₃O₃₆]	1	79443	19
Sillimanite ()*	Not in a structural group	Al₂SiO₅	7	79406,79411,79414,79436,79437,79438,79462	1516
Spinel ()*	Spinel	MgAl₂O₄	16	79398,79402,79406,79412,79414,79416,79423,79426,79427,79435,79436,79440,79443,79452,79453,79462	1934
Thorianite ()*	Fluorite	ThO₂	1	79457	236
Titanite ()*	Titanite	CaTi(SiO₄)O	1	79441	4899
Topaz ()*	Topaz	Al₂SiO₄F₂	1	79416	1476
Zircon ()*	Zircon	Zr(SiO₄)	3	79395,79416,79436	5251

No ages have been assigned to this locality yet.

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...