formula	common name	Source	in stock?	Beamline
Si powder1		Alfa-Aeser Stock #44384 Lot #J06T047	yes	X15b
SiO2	silica	unknown	yes	X15b
SiO2	quartz	H-122838	yes	X15b
SiO	silicon monoxide	Aldritch 262951-50G Batch #01422EJ	yes2	X15b
Si3N2	silicon nitride	Alfa-Aeser Stock #14704 Lot #H14T015	yes	X15b
FeSi	iron silicide	Alfa-Aeser Stock #14019 Lot #A15T045	yes	X15b
SiC	silicon carbide	Alfa-Aeser Stock #43332 Lot #D03T026	yes	X15b
Mg2SiO4	Forsterite	unknown	yes	X15b
Fe2SiO4	Fayalite	Alfa-Aeser stock #44278	yes	X15b
MgSiO3	enstatite	Alfa-Aeser stock #42638 Lot #E15T035	yes	X15b
MgSiO3	enstatite (colorless)	H-132059	yes	X15b
MgSiO3	enstatite	Indarch meteorite3	yes	X15b
(Mg,Fe)SiO3	enstatite (black)	H-130424	yes	X15b
See note 4	montmorillonite	H-142599	yes	X15b
See note 5	nontronite	H-102634	yes	X15b
(Mg,Fe)3Si2O5(OH)4	antigorite/serpentine	H-126645	yes	X15b
Mg3(Si2O5)(OH)4	chrysotile/white asbestos	H-98898	yes	X15b
(Mg,Fe)2SiO4	forsterite/olivine	H-88333B	yes	X15b

Notes

1. partially oxidized
2. See this paper which doubts commercial SiO phase purity, J. Non-Crystalline Solids 204:2, (1996) 202-203
3. See http://www.mindat.org/loc-20446.html and http://www.meteoritestudies.com/protected_INDARCH.HTM and this Nature article. Googling for indarch returns lots of hits.
4. Nominal formula for montmorillonite: (Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂.nH₂O
5. Nominal formula for nontronite: Ca_0.5(Si₇Al_0.8Fe_0.2)(Fe_3.5Al_0.4Mg_0.1)O₂₀(OH)₄

Other minerals

* Andalusite, kyanite, and sillimanite are naturally occurring aluminosilicate minerals that have the composition Al₂SiO₅.

• Garnets are nesosilicates having the general formula X₃Y₂(SiO₄)₃. The X site is usually occupied by divalent cations (Ca²⁺, Mg²⁺, Fe²⁺) and the Y site by trivalent cations (Al³⁺, Fe³⁺, Cr³⁺) in an octahedral/tetrahedral framework with [SiO₄]⁴⁻ occupying the tetrahedra.

Mount a glass slide to test the beamline configuration

• testsio2.001 - .002 (get calibration)

Time: 1551

• glass.001 (test calibration)

Sample holder:

+------------------+
|                  |
|      +--------+  |
|      |        |  |
|      | Nothing|  |
|      |        |  |
|      | Si3N4  |  |   from Alfa-Aeser
|      |        |  |
|      | FeSi   |  |   from Alfa-Aeser
|      |        |  |
|      | SiC    |  |   from Alfa-Aeser
|      |        |  |
|      | C Tape |  |   blank carbon tape to check for Si content
|      |        |  |
|      +--------+  |
|                  |
+------------------+

Time: 1820

• si3n4.001
• si3n4.002 aborted
• si3n4.003 longer postedge

New scan parameters:

energy ranges

1790, 1830, 1850, 1900, 1980

step sizes

0.5, 0.25, 1, 2

After fill move to a new spot on Si₃N₄.

• si3n4.004 - .007
• sife.001 test edge
• sife.002 +
• sic,001 edge scan

Time: 2240

• sic.002 forgot to increase the number of scans! D'oh!

Time: 0800

• sic.003 - .006
• ctape.001

+--------------------+
|                    |
|      +----------+  |
|      |          |  |
|      | SiO2     |  |
|      |          |  |
|      | FeSi     |  |   from Alfa-Aeser
|      |          |  |
|      | MgSiO3   |  | 
|      |          |  |
|      | Mg2SiO4  |  |
|      |          |  |
|      | Fe2SiO4  |  |   from Alfa-Aeser
|      |          |  |
|      +----------+  |
|                    |
+--------------------+

• simg2o4.001 - .003
• simg2o4.004 aborted for Paul to optimize beamline

Paul realigned beamline, increasing flux by at least an order of magnitude.

There is a small energy shift in the data of -0.415 eV, found by comparing simg2o4.003 and .006

All data from simg2o4.006 to the end of the experiment is shifted by -0.415 volts relative to earlier data

Time: 1520

• simg2o4.006 after realignment
• simg2o4.007 aborted

Time: 1640

• sio2.001 - .004 OK
• sio2.005 - .008 during fill
• sio2.009 - .010 OK
• sio2.011 aborted

Time: 2100

• sife.001 - .005

Time: 2345

• sife2o4.001 - .010, .017

+--------------------+
|                    |
|      +----------+  |
|      |          |  |
|      | Enstatite|  |   from Alfa-Aeser (sienaa)
|      |          |  |
|      | Enstatite|  |   Fe-free 132059 (sienfef)
|      |          |  |
|      | Enstatite|  |   Chondrite (Indarch meteorite) (sienchon)
|      |          |  |
|      | Enstatite|  |   "Paulite" 130424 (sienplt)
|      |          |  |
|      | Quartz   |  |   Hot Springs AK, Garland 6
|      |          |  |
|      +----------+  |
|                    |
+--------------------+

• sienaa.001 - 004 (.005 aborted)
• sienfef.001 - .004 (.005, .006 aborted)
• sienplt.001 - .005

Time: 1800

• siquartz.001 - .010 (of these, only .001, .007, .008, .009 are good)

Time: 2200

• sienchon.001 - .014 (.015 + during morning fill)

+--------------------+
|                    |
|      +----------+  |
|      |          |  |
|      | Si       |  |   very fine powder
|      |          |  |
|      | Quartz   |  |   SiO (silicon monoxide)
|      |          |  |
|      +----------+  |
|                    |
+--------------------+

Time: 0925

• si.001 - .004 (This is somewhat oxidized)

Time 1210

• sio.001 - .004

+----------------------+
|                      |
|      +------------+  |
|      |            |  |
|      | Montmor.   |  |   Montmorillonite 142599 (simont)
|      |            |  |
|      | Nontron.   |  |   Nontronite 102634 (sinon)
|      |            |  |
|      | Antogorite |  |   126645 (sianti)
|      |            |  |
|      | Crysotile  |  |   98898 (sicrys)
|      |            |  |
|      | Forsterite |  |   olivine from Rice Gila Co. AZ
|      |            |  |
|      | Quartz     |  |   Hot Springs AK, Garland 6 (again, slightly finer powder)
|      |            |  |
|      +------------+  |
|                      |
+----------------------+

Time: 1525

• simont.001 - .004
• sinon.001
• sinon.002 - .005 during fill
• sinon.006 - .008

Time: 1050

• sianti.001 - .004

• sicsys.001 - .004 (note that "sicsys" is the crysotile sample)
• sifoist.001 - .019 (note that "sifoist" is Forsterite)
• siq2.001 - .004 (I tried to grind this sample more finely than the first one. I succeeded, but only a bit more so)