Answering a few questions so this'll be long, sorry.
I remember reading otherwise. I just make some tests and it seems that you can make beacon using GT metal blocks, some IC2 (bronze and uranium, not tin and copper) and FZ (lead and dark iron).
RP2 gem/metal blocks, RC steel and amber blocks don't work. I don't know about Xycraft.
To clarify, most blocks classed as "mineral" blocks work as beacon bases. Any mod beacon base has to be added manually, so whilst most minerals actually work, not all of them do. Blocks of raw Xychorium work, for example.
The fastest way to find out if a material works as a beacon base or not is to try it.
Is Nanosuit armor worth it? I mean, I've got a jetpack, a lappack, and it's annoying enough having to constantly switch between them, but I wanted an armor that didn't just break, that I could recharge and use again.
The NanoSuit is underestimated even after its nerf that stopped it being an invincibility suit. It still in practice provides excellent protection to rival diamond armor and is your logical step after iron/bronze armor. It's not the best armor you'll ever make but it was never meant to be. I highly recommend you use it whilst you work on better armor for the long term. As mentioned, the Advanced NanoSuit new to the Gravitation Suite (and not yet in FTB but will be next time they update) is also looking like an excellent mid-step choice whilst you work on top-end equipment.
If you're considering using the Power Suit, I recommend waiting until you can successfully install full Advanced Plating first to prevent mobility problems.
I'm having issues with chrome ingots. My industrial blast furnace won't smelt chrome dust. I play on a FTB Mindcrack server with Gregtech on Hard mode. I use my IBF to get titanium ingots, there's no power issue, it just won't react to chrome dust. Have I done something wrong?
If you examine the recipes for the various ingots from a Blast Furnace in detail, you will notice they require different levels of "heat tolerance" to smelt successfully. The heat tolerance of your own Blast Furnace is dependent on the casing you used to create the furnace: a Blast Furnace made only of basic casing is only just able to smelt steel and nothing else, whilst a Blast Furnace made purely of advanced casing is actually overkill and goes well over the requirements to smelt even Tungstensteel. It is therefore most likely that your Blast Furnace is strong enough to smelt Titanium but not Chrome and requires an upgraded case.
A fast way to upgrade a Blast Furnace, although one that requires some care, is to add lava blocks to the space in the inside. You can fit two in there and each one adds 500 heat tolerance to your Blast Furnace. This is the fastest way to upgrade your Blast Furnace but also the most risky because, y'know, lava.
A Blast Furnace will tell you its exact heat tolerance when you open its GUI. Basic Casing adds 25 tolerance, Reinforced adds 50 and Advanced adds 100. IIRC the heat tolerance required to smelt Chrome is 1700K. 3000K is enough to smelt anything the furnace can currently make. A Blast Furnace made entirely of 34 basic cases only has 850 heat tolerance so use that as a base to work from. A fully fitted advanced blast furnace tops out at 4400, which as I said before is far over the limit to smelt anything you need; in other words you don't have to overdo it with the advanced casing!
The Blast Furnace also requires a constant stream of power but if you're smelting lesser ingots you probably have that sorted already: you should supply a Blast Furnace with full Medium Voltage to power it properly.